155255572680 has 128 divisors (see below), whose sum is σ = 517775569920. Its totient is φ = 36983946240.

The previous prime is 155255572669. The next prime is 155255572709. The reversal of 155255572680 is 86275552551.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1556847 + ... + 1653566.

It is an arithmetic number, because the mean of its divisors is an integer number (4045121640).

Almost surely, 2^155255572680 is an apocalyptic number.

155255572680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155255572680 is an abundant number, since it is smaller than the sum of its proper divisors (362519997240).

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

155255572680 is a wasteful number, since it uses less digits than its factorization.

155255572680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210471 (or 3210467 counting only the distinct ones).

The product of its (nonzero) digits is 4200000, while the sum is 51.

The spelling of 155255572680 in words is "one hundred fifty-five billion, two hundred fifty-five million, five hundred seventy-two thousand, six hundred eighty".