71916164 has 12 divisors (see below), whose sum is σ = 125964300. Its totient is φ = 35926368.

The previous prime is 71916109. The next prime is 71916179. The reversal of 71916164 is 46161917.

It can be written as a sum of positive squares in 2 ways, for example, as 47334400 + 24581764 = 6880^2 + 4958^2 .

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, 2399 + ... + 12230.

It is an arithmetic number, because the mean of its divisors is an integer number (10497025).

Almost surely, 2^71916164 is an apocalyptic number.

It is an amenable number.

71916164 is a deficient number, since it is larger than the sum of its proper divisors (54048136).

71916164 is a wasteful number, since it uses less digits than its factorization.

71916164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15862 (or 15860 counting only the distinct ones).

The product of its digits is 9072, while the sum is 35.

The square root of 71916164 is about 8480.3398516805. The cubic root of 71916164 is about 415.8552334664.

The spelling of 71916164 in words is "seventy-one million, nine hundred sixteen thousand, one hundred sixty-four".