155660605606 has 24 divisors (see below), whose sum is σ = 256697914032. Its totient is φ = 70740793200.

The previous prime is 155660605603. The next prime is 155660605619. The reversal of 155660605606 is 606506066551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155660605603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1212031 + ... + 1334293.

It is an arithmetic number, because the mean of its divisors is an integer number (10695746418).

Almost surely, 2^155660605606 is an apocalyptic number.

155660605606 is a deficient number, since it is larger than the sum of its proper divisors (101037308426).

155660605606 is a wasteful number, since it uses less digits than its factorization.

155660605606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127548 (or 127537 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 155660605606 in words is "one hundred fifty-five billion, six hundred sixty million, six hundred five thousand, six hundred six".