56983078660091 has 2 divisors, whose sum is σ = 56983078660092. Its totient is φ = 56983078660090.

The previous prime is 56983078660069. The next prime is 56983078660099. The reversal of 56983078660091 is 19006687038965.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56983078660091 is a prime.

It is a super-2 number, since 2×56983078660091² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56983078660099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28491539330045 + 28491539330046.

It is an arithmetic number, because the mean of its divisors is an integer number (28491539330046).

Almost surely, 2^{56983078660091} is an apocalyptic number.

56983078660091 is a deficient number, since it is larger than the sum of its proper divisors (1).

56983078660091 is an equidigital number, since it uses as much as digits as its factorization.

56983078660091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 56983078660091 in words is "fifty-six trillion, nine hundred eighty-three billion, seventy-eight million, six hundred sixty thousand, ninety-one".