2156263113066 has 32 divisors (see below), whose sum is σ = 4341271939200. Its totient is φ = 713963827200.

The previous prime is 2156263113031. The next prime is 2156263113089. The reversal of 2156263113066 is 6603113626512.

It is a super-2 number, since 2×2156263113066² (a number of 25 digits) contains 22 as substring.

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, 32772490 + ... + 32838218.

It is an arithmetic number, because the mean of its divisors is an integer number (135664748100).

Almost surely, 2^{2156263113066} is an apocalyptic number.

2156263113066 is an abundant number, since it is smaller than the sum of its proper divisors (2185008826134).

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

2156263113066 is a wasteful number, since it uses less digits than its factorization.

2156263113066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102094.

The product of its (nonzero) digits is 233280, while the sum is 42.

Adding to 2156263113066 its reverse (6603113626512), we get a palindrome (8759376739578).

The spelling of 2156263113066 in words is "two trillion, one hundred fifty-six billion, two hundred sixty-three million, one hundred thirteen thousand, sixty-six".