256650100461451 has 2 divisors, whose sum is σ = 256650100461452. Its totient is φ = 256650100461450.

The previous prime is 256650100461427. The next prime is 256650100461523. The reversal of 256650100461451 is 154164001056652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256650100461451 - 2³⁷ = 256512661507979 is a prime.

It is not a weakly prime, because it can be changed into another prime (256650100461851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128325050230725 + 128325050230726.

It is an arithmetic number, because the mean of its divisors is an integer number (128325050230726).

Almost surely, 2^{256650100461451} is an apocalyptic number.

256650100461451 is a deficient number, since it is larger than the sum of its proper divisors (1).

256650100461451 is an equidigital number, since it uses as much as digits as its factorization.

256650100461451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 256650100461451 in words is "two hundred fifty-six trillion, six hundred fifty billion, one hundred million, four hundred sixty-one thousand, four hundred fifty-one".