155646402 has 8 divisors (see below), whose sum is σ = 311292816. Its totient is φ = 51882132.

The previous prime is 155646401. The next prime is 155646419. The reversal of 155646402 is 204646551.

155646402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

155646402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (155646401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12970528 + ... + 12970539.

It is an arithmetic number, because the mean of its divisors is an integer number (38911602).

Almost surely, 2^155646402 is an apocalyptic number.

155646402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

155646402 is a wasteful number, since it uses less digits than its factorization.

155646402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25941072.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 155646402 is about 12475.8327176986. The cubic root of 155646402 is about 537.9142241972.

The spelling of 155646402 in words is "one hundred fifty-five million, six hundred forty-six thousand, four hundred two".