631054205666465 has 64 divisors (see below), whose sum is σ = 901125734261760. Its totient is φ = 415230423552000.

The previous prime is 631054205666411. The next prime is 631054205666471. The reversal of 631054205666465 is 564666502450136.

It is a happy number.

It is not a de Polignac number, because 631054205666465 - 2¹⁴ = 631054205650081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2279360516 + ... + 2279637354.

It is an arithmetic number, because the mean of its divisors is an integer number (14080089597840).

Almost surely, 2^{631054205666465} is an apocalyptic number.

It is an amenable number.

631054205666465 is a deficient number, since it is larger than the sum of its proper divisors (270071528595295).

631054205666465 is a wasteful number, since it uses less digits than its factorization.

631054205666465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302994.

The product of its (nonzero) digits is 93312000, while the sum is 59.

The spelling of 631054205666465 in words is "six hundred thirty-one trillion, fifty-four billion, two hundred five million, six hundred sixty-six thousand, four hundred sixty-five".