2155758575512 has 64 divisors (see below), whose sum is σ = 4162416089760. Its totient is φ = 1046233344000.

The previous prime is 2155758575461. The next prime is 2155758575533.

2155758575512 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55266288 + ... + 55305280.

Almost surely, 2^{2155758575512} is an apocalyptic number.

It is an amenable number.

2155758575512 is a deficient number, since it is larger than the sum of its proper divisors (2006657514248).

2155758575512 is a wasteful number, since it uses less digits than its factorization.

2155758575512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40444 (or 40440 counting only the distinct ones).

The product of its digits is 24500000, while the sum is 58.

The spelling of 2155758575512 in words is "two trillion, one hundred fifty-five billion, seven hundred fifty-eight million, five hundred seventy-five thousand, five hundred twelve".