8051957181561 has 8 divisors (see below), whose sum is σ = 10736085016960. Its totient is φ = 5367900400272.

The previous prime is 8051957181529. The next prime is 8051957181563. The reversal of 8051957181561 is 1651817591508.

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

It is not a de Polignac number, because 8051957181561 - 2⁵ = 8051957181529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8051957181563) 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, 17498545 + ... + 17952798.

It is an arithmetic number, because the mean of its divisors is an integer number (1342010627120).

Almost surely, 2^{8051957181561} is an apocalyptic number.

It is an amenable number.

8051957181561 is a deficient number, since it is larger than the sum of its proper divisors (2684127835399).

8051957181561 is a wasteful number, since it uses less digits than its factorization.

8051957181561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35527055.

The product of its (nonzero) digits is 3024000, while the sum is 57.

The spelling of 8051957181561 in words is "eight trillion, fifty-one billion, nine hundred fifty-seven million, one hundred eighty-one thousand, five hundred sixty-one".