71276500664 has 16 divisors (see below), whose sum is σ = 135834315720. Its totient is φ = 35054016480.

The previous prime is 71276500637. The next prime is 71276500727. The reversal of 71276500664 is 46600567217.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73028714 + ... + 73029689.

Almost surely, 2^71276500664 is an apocalyptic number.

It is an amenable number.

71276500664 is a deficient number, since it is larger than the sum of its proper divisors (64557815056).

71276500664 is a wasteful number, since it uses less digits than its factorization.

71276500664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146058470 (or 146058466 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 71276500664 in words is "seventy-one billion, two hundred seventy-six million, five hundred thousand, six hundred sixty-four".