155641600 has 108 divisors (see below), whose sum is σ = 391209336. Its totient is φ = 61296640.

The previous prime is 155641543. The next prime is 155641609. The reversal of 155641600 is 6146551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155641609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531054 + ... + 531346.

Almost surely, 2^155641600 is an apocalyptic number.

155641600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155641600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195604668).

155641600 is an abundant number, since it is smaller than the sum of its proper divisors (235567736).

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

155641600 is an equidigital number, since it uses as much as digits as its factorization.

155641600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 155641600 is about 12475.6402641307. The cubic root of 155641600 is about 537.9086922337.

The spelling of 155641600 in words is "one hundred fifty-five million, six hundred forty-one thousand, six hundred".