2155257488592 has 90 divisors (see below), whose sum is σ = 6495898041906. Its totient is φ = 663136606080.

The previous prime is 2155257488581. The next prime is 2155257488621. The reversal of 2155257488592 is 2958847525512.

2155257488592 is a `hidden beast` number, since 2 + 1 + 5 + 5 + 2 + 574 + 8 + 8 + 59 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1492101338256 + 663156150336 = 1221516^2 + 814344^2 .

It is a congruent number.

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, 63501867 + ... + 63535797.

Almost surely, 2^{2155257488592} is an apocalyptic number.

It is an amenable number.

2155257488592 is an abundant number, since it is smaller than the sum of its proper divisors (4340640553314).

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

2155257488592 is an frugal number, since it uses more digits than its factorization.

2155257488592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67889 (or 33949 counting only the distinct ones).

The product of its digits is 80640000, while the sum is 63.

The spelling of 2155257488592 in words is "two trillion, one hundred fifty-five billion, two hundred fifty-seven million, four hundred eighty-eight thousand, five hundred ninety-two".