2155702620960 has 216 divisors, whose sum is σ = 8557369791516. Its totient is φ = 492732011520.

The previous prime is 2155702620949. The next prime is 2155702620991. The reversal of 2155702620960 is 690262075512.

2155702620960 is a `hidden beast` number, since 2 + 1 + 557 + 0 + 2 + 6 + 2 + 0 + 96 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1913319699984 + 242382920976 = 1383228^2 + 492324^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15205111 + ... + 15346230.

Almost surely, 2^{2155702620960} is an apocalyptic number.

2155702620960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2155702620960 is an abundant number, since it is smaller than the sum of its proper divisors (6401667170556).

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

2155702620960 is a wasteful number, since it uses less digits than its factorization.

2155702620960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30551376 (or 30551358 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 2155702620960 in words is "two trillion, one hundred fifty-five billion, seven hundred two million, six hundred twenty thousand, nine hundred sixty".