65972197674 has 24 divisors (see below), whose sum is σ = 142947642240. Its totient is φ = 21989520168.

The previous prime is 65972197663. The next prime is 65972197699. The reversal of 65972197674 is 47679127956.

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, 271687 + ... + 453605.

It is an arithmetic number, because the mean of its divisors is an integer number (5956151760).

Almost surely, 2^65972197674 is an apocalyptic number.

65972197674 is an abundant number, since it is smaller than the sum of its proper divisors (76975444566).

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

65972197674 is a wasteful number, since it uses less digits than its factorization.

65972197674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202074 (or 202071 counting only the distinct ones).

The product of its digits is 40007520, while the sum is 63.

The spelling of 65972197674 in words is "sixty-five billion, nine hundred seventy-two million, one hundred ninety-seven thousand, six hundred seventy-four".