71645793966 has 24 divisors (see below), whose sum is σ = 155467424424. Its totient is φ = 23845797360.

The previous prime is 71645793931. The next prime is 71645794019. The reversal of 71645793966 is 66939754617.

71645793966 is a `hidden beast` number, since 7 + 1 + 6 + 457 + 93 + 96 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2998936 + ... + 3022731.

It is an arithmetic number, because the mean of its divisors is an integer number (6477809351).

Almost surely, 2^71645793966 is an apocalyptic number.

71645793966 is an abundant number, since it is smaller than the sum of its proper divisors (83821630458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71645793966 is a wasteful number, since it uses less digits than its factorization.

71645793966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6022336 (or 6022333 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 63.

The spelling of 71645793966 in words is "seventy-one billion, six hundred forty-five million, seven hundred ninety-three thousand, nine hundred sixty-six".