2156051775022 has 16 divisors (see below), whose sum is σ = 3309900168960. Its totient is φ = 1052760982392.

The previous prime is 2156051774963. The next prime is 2156051775049. The reversal of 2156051775022 is 2205771506512.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 2156051775022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1847158 + ... + 2779225.

It is an arithmetic number, because the mean of its divisors is an integer number (206868760560).

Almost surely, 2^{2156051775022} is an apocalyptic number.

2156051775022 is a deficient number, since it is larger than the sum of its proper divisors (1153848393938).

2156051775022 is a wasteful number, since it uses less digits than its factorization.

2156051775022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4631847.

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 2156051775022 in words is "two trillion, one hundred fifty-six billion, fifty-one million, seven hundred seventy-five thousand, twenty-two".