161362650 has 48 divisors (see below), whose sum is σ = 404179488. Its totient is φ = 42600000.

The previous prime is 161362637. The next prime is 161362667. The reversal of 161362650 is 56263161.

161362650 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9825 + ... + 20475.

It is an arithmetic number, because the mean of its divisors is an integer number (8420406).

Almost surely, 2^161362650 is an apocalyptic number.

161362650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161362650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202089744).

161362650 is an abundant number, since it is smaller than the sum of its proper divisors (242816838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161362650 is a wasteful number, since it uses less digits than its factorization.

161362650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10767 (or 10762 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 161362650 is about 12702.8599142083. The cubic root of 161362650 is about 544.4203359063.

The spelling of 161362650 in words is "one hundred sixty-one million, three hundred sixty-two thousand, six hundred fifty".