664605062463 has 64 divisors (see below), whose sum is σ = 1013796311040. Its totient is φ = 384751116288.

The previous prime is 664605062453. The next prime is 664605062479. The reversal of 664605062463 is 364260506466.

It is not a de Polignac number, because 664605062463 - 2⁵ = 664605062431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664605062423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37511895 + ... + 37529607.

It is an arithmetic number, because the mean of its divisors is an integer number (15840567360).

Almost surely, 2^664605062463 is an apocalyptic number.

664605062463 is a deficient number, since it is larger than the sum of its proper divisors (349191248577).

664605062463 is a wasteful number, since it uses less digits than its factorization.

664605062463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18888.

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 664605062463 in words is "six hundred sixty-four billion, six hundred five million, sixty-two thousand, four hundred sixty-three".