65816074172 has 6 divisors (see below), whose sum is σ = 115178129808. Its totient is φ = 32908037084.

The previous prime is 65816074147. The next prime is 65816074183. The reversal of 65816074172 is 27147061856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8227009268 + ... + 8227009275.

It is an arithmetic number, because the mean of its divisors is an integer number (19196354968).

Almost surely, 2^65816074172 is an apocalyptic number.

It is an amenable number.

65816074172 is a deficient number, since it is larger than the sum of its proper divisors (49362055636).

65816074172 is a wasteful number, since it uses less digits than its factorization.

65816074172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16454018547 (or 16454018545 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 65816074172 in words is "sixty-five billion, eight hundred sixteen million, seventy-four thousand, one hundred seventy-two".