161464368 has 160 divisors (see below), whose sum is σ = 491968512. Its totient is φ = 45158400.

The previous prime is 161464367. The next prime is 161464397. The reversal of 161464368 is 863464161.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (161464367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328603 + ... + 329093.

Almost surely, 2^161464368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161464368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245984256).

161464368 is an abundant number, since it is smaller than the sum of its proper divisors (330504144).

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

161464368 is a wasteful number, since it uses less digits than its factorization.

161464368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 557 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 161464368 is about 12706.8630275139. The cubic root of 161464368 is about 544.5347070980.

The spelling of 161464368 in words is "one hundred sixty-one million, four hundred sixty-four thousand, three hundred sixty-eight".