2155966254762 has 16 divisors (see below), whose sum is σ = 4312738994592. Its totient is φ = 718521004080.

The previous prime is 2155966254721. The next prime is 2155966254763. The reversal of 2155966254762 is 2674526695512.

It is a junction number, because it is equal to n+sod(n) for n = 2155966254696 and 2155966254705.

It is not an unprimeable number, because it can be changed into a prime (2155966254763) 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, 33568789 + ... + 33632952.

It is an arithmetic number, because the mean of its divisors is an integer number (269546187162).

Almost surely, 2^{2155966254762} is an apocalyptic number.

2155966254762 is an abundant number, since it is smaller than the sum of its proper divisors (2156772739830).

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

2155966254762 is a wasteful number, since it uses less digits than its factorization.

2155966254762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67207093.

The product of its digits is 54432000, while the sum is 60.

The spelling of 2155966254762 in words is "two trillion, one hundred fifty-five billion, nine hundred sixty-six million, two hundred fifty-four thousand, seven hundred sixty-two".