2155630550624 has 48 divisors (see below), whose sum is σ = 4359208266000. Its totient is φ = 1048538202624.

The previous prime is 2155630550603. The next prime is 2155630550627. The reversal of 2155630550624 is 4260550365512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155630550627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8577347 + ... + 8825085.

It is an arithmetic number, because the mean of its divisors is an integer number (90816838875).

Almost surely, 2^{2155630550624} is an apocalyptic number.

It is an amenable number.

2155630550624 is an abundant number, since it is smaller than the sum of its proper divisors (2203577715376).

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

2155630550624 is a wasteful number, since it uses less digits than its factorization.

2155630550624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255135 (or 255127 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 2155630550624 in words is "two trillion, one hundred fifty-five billion, six hundred thirty million, five hundred fifty thousand, six hundred twenty-four".