56991451041 has 160 divisors (see below), whose sum is σ = 101566586880. Its totient is φ = 31180391424.

The previous prime is 56991450991. The next prime is 56991451051. The reversal of 56991451041 is 14015419965.

56991451041 is a `hidden beast` number, since 5 + 6 + 9 + 91 + 4 + 510 + 41 = 666.

It is not a de Polignac number, because 56991451041 - 2¹⁰ = 56991450017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56991451051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 415995925 + ... + 415996061.

It is an arithmetic number, because the mean of its divisors is an integer number (634791168).

Almost surely, 2^56991451041 is an apocalyptic number.

It is an amenable number.

56991451041 is a deficient number, since it is larger than the sum of its proper divisors (44575135839).

56991451041 is a wasteful number, since it uses less digits than its factorization.

56991451041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 56991451041 in words is "fifty-six billion, nine hundred ninety-one million, four hundred fifty-one thousand, forty-one".