2156982550001 has 8 divisors (see below), whose sum is σ = 2190999195744. Its totient is φ = 2123019518400.

The previous prime is 2156982549941. The next prime is 2156982550043. The reversal of 2156982550001 is 1000552896512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2156982550001 - 2¹⁴ = 2156982533617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2156982550081) 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, 13322435 + ... + 13483368.

It is an arithmetic number, because the mean of its divisors is an integer number (273874899468).

Almost surely, 2^{2156982550001} is an apocalyptic number.

It is an amenable number.

2156982550001 is a deficient number, since it is larger than the sum of its proper divisors (34016645743).

2156982550001 is a wasteful number, since it uses less digits than its factorization.

2156982550001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26807071.

The product of its (nonzero) digits is 216000, while the sum is 44.

The spelling of 2156982550001 in words is "two trillion, one hundred fifty-six billion, nine hundred eighty-two million, five hundred fifty thousand, one".