155680120132200 has 72 divisors (see below), whose sum is σ = 522825736783350. Its totient is φ = 41514698701440.

The previous prime is 155680120132127. The next prime is 155680120132223. The reversal of 155680120132200 is 2231021086551.

155680120132200 is a `hidden beast` number, since 1 + 5 + 56 + 80 + 1 + 201 + 322 + 0 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 149550544395396 + 6129575736804 = 12229086^2 + 2475798^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 43244476015 + ... + 43244479614.

Almost surely, 2^{155680120132200} is an apocalyptic number.

155680120132200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155680120132200 is an abundant number, since it is smaller than the sum of its proper divisors (367145616651150).

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

155680120132200 is a wasteful number, since it uses less digits than its factorization.

155680120132200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86488955651 (or 86488955639 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 155680120132200 in words is "one hundred fifty-five trillion, six hundred eighty billion, one hundred twenty million, one hundred thirty-two thousand, two hundred".