2155610989675 has 48 divisors (see below), whose sum is σ = 3144859216128. Its totient is φ = 1445003049600.

The previous prime is 2155610989657. The next prime is 2155610989793. The reversal of 2155610989675 is 5769890165512.

It is not a de Polignac number, because 2155610989675 - 2¹⁵ = 2155610956907 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2000314 + ... + 2883136.

It is an arithmetic number, because the mean of its divisors is an integer number (65517900336).

Almost surely, 2^{2155610989675} is an apocalyptic number.

2155610989675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2155610989675 is a deficient number, since it is larger than the sum of its proper divisors (989248226453).

2155610989675 is a wasteful number, since it uses less digits than its factorization.

2155610989675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883540 (or 883535 counting only the distinct ones).

The product of its (nonzero) digits is 40824000, while the sum is 64.

The spelling of 2155610989675 in words is "two trillion, one hundred fifty-five billion, six hundred ten million, nine hundred eighty-nine thousand, six hundred seventy-five".