155609608 has 64 divisors (see below), whose sum is σ = 366307200. Its totient is φ = 60203520.

The previous prime is 155609579. The next prime is 155609617. The reversal of 155609608 is 806906551.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95908 + ... + 97516.

It is an arithmetic number, because the mean of its divisors is an integer number (5723550).

Almost surely, 2^155609608 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 155609608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183153600).

155609608 is an abundant number, since it is smaller than the sum of its proper divisors (210697592).

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

155609608 is a wasteful number, since it uses less digits than its factorization.

155609608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790 (or 1786 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 155609608 is about 12474.3580195536. The cubic root of 155609608 is about 537.8718341484.

The spelling of 155609608 in words is "one hundred fifty-five million, six hundred nine thousand, six hundred eight".