256631104546653 has 16 divisors (see below), whose sum is σ = 349483332939840. Its totient is φ = 167448924749184.

The previous prime is 256631104546601. The next prime is 256631104546657. The reversal of 256631104546653 is 356645401136652.

It is not a de Polignac number, because 256631104546653 - 2¹² = 256631104542557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256631104546593 and 256631104546602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256631104546657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1973079351 + ... + 1973209412.

It is an arithmetic number, because the mean of its divisors is an integer number (21842708308740).

Almost surely, 2^{256631104546653} is an apocalyptic number.

It is an amenable number.

256631104546653 is a deficient number, since it is larger than the sum of its proper divisors (92852228393187).

256631104546653 is a wasteful number, since it uses less digits than its factorization.

256631104546653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946289228.

The product of its (nonzero) digits is 46656000, while the sum is 57.

The spelling of 256631104546653 in words is "two hundred fifty-six trillion, six hundred thirty-one billion, one hundred four million, five hundred forty-six thousand, six hundred fifty-three".