56816180987 has 2 divisors, whose sum is σ = 56816180988. Its totient is φ = 56816180986.

The previous prime is 56816180969. The next prime is 56816181001. The reversal of 56816180987 is 78908161865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56816180987 - 2¹⁰ = 56816179963 is a prime.

It is not a weakly prime, because it can be changed into another prime (56816180287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28408090493 + 28408090494.

It is an arithmetic number, because the mean of its divisors is an integer number (28408090494).

Almost surely, 2^56816180987 is an apocalyptic number.

56816180987 is a deficient number, since it is larger than the sum of its proper divisors (1).

56816180987 is an equidigital number, since it uses as much as digits as its factorization.

56816180987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 59.

The spelling of 56816180987 in words is "fifty-six billion, eight hundred sixteen million, one hundred eighty thousand, nine hundred eighty-seven".