655155672 has 16 divisors (see below), whose sum is σ = 1637889240. Its totient is φ = 218385216.

The previous prime is 655155661. The next prime is 655155703. The reversal of 655155672 is 276551556.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13649053 + ... + 13649100.

Almost surely, 2^655155672 is an apocalyptic number.

It is an amenable number.

655155672 is an abundant number, since it is smaller than the sum of its proper divisors (982733568).

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

655155672 is a wasteful number, since it uses less digits than its factorization.

655155672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27298162 (or 27298158 counting only the distinct ones).

The product of its digits is 315000, while the sum is 42.

The square root of 655155672 is about 25596.0089076403. The cubic root of 655155672 is about 868.5233558693.

The spelling of 655155672 in words is "six hundred fifty-five million, one hundred fifty-five thousand, six hundred seventy-two".