2156632366512 has 160 divisors (see below), whose sum is σ = 6208911979200. Its totient is φ = 640474361856.

The previous prime is 2156632366501. The next prime is 2156632366517.

It is a happy number.

2156632366512 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2156632366512² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2156632366517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56241298 + ... + 56279630.

It is an arithmetic number, because the mean of its divisors is an integer number (38805699870).

Almost surely, 2^{2156632366512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2156632366512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3104455989600).

2156632366512 is an abundant number, since it is smaller than the sum of its proper divisors (4052279612688).

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

2156632366512 is a wasteful number, since it uses less digits than its factorization.

2156632366512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41495 (or 41489 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 48.

The spelling of 2156632366512 in words is "two trillion, one hundred fifty-six billion, six hundred thirty-two million, three hundred sixty-six thousand, five hundred twelve".