2150700056557 has 4 divisors (see below), whose sum is σ = 2316138522460. Its totient is φ = 1985261590656.

The previous prime is 2150700056551. The next prime is 2150700056591. The reversal of 2150700056557 is 7556500070512.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 463854982761 + 1686845073796 = 681069^2 + 1298786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2150700056557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150700056551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82719232932 + ... + 82719232957.

It is an arithmetic number, because the mean of its divisors is an integer number (579034630615).

Almost surely, 2^{2150700056557} is an apocalyptic number.

It is an amenable number.

2150700056557 is a deficient number, since it is larger than the sum of its proper divisors (165438465903).

2150700056557 is a wasteful number, since it uses less digits than its factorization.

2150700056557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165438465902.

The product of its (nonzero) digits is 367500, while the sum is 43.

The spelling of 2150700056557 in words is "two trillion, one hundred fifty billion, seven hundred million, fifty-six thousand, five hundred fifty-seven".