664412657402253 has 16 divisors (see below), whose sum is σ = 886021981802496. Its totient is φ = 442872554313840.

The previous prime is 664412657402251. The next prime is 664412657402261. The reversal of 664412657402253 is 352204756214466.

It is not a de Polignac number, because 664412657402253 - 2¹ = 664412657402251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 664412657402193 and 664412657402202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664412657402251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1573066968 + ... + 1573489278.

It is an arithmetic number, because the mean of its divisors is an integer number (55376373862656).

Almost surely, 2^{664412657402253} is an apocalyptic number.

It is an amenable number.

664412657402253 is a deficient number, since it is larger than the sum of its proper divisors (221609324400243).

664412657402253 is a wasteful number, since it uses less digits than its factorization.

664412657402253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503024.

The product of its (nonzero) digits is 58060800, while the sum is 57.

The spelling of 664412657402253 in words is "six hundred sixty-four trillion, four hundred twelve billion, six hundred fifty-seven million, four hundred two thousand, two hundred fifty-three".