51506045662 has 8 divisors (see below), whose sum is σ = 77313365856. Its totient is φ = 25734923712.

The previous prime is 51506045659. The next prime is 51506045677. The reversal of 51506045662 is 26654060515.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 9046003 + ... + 9051694.

It is an arithmetic number, because the mean of its divisors is an integer number (9664170732).

Almost surely, 2^51506045662 is an apocalyptic number.

51506045662 is a deficient number, since it is larger than the sum of its proper divisors (25807320194).

51506045662 is a wasteful number, since it uses less digits than its factorization.

51506045662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18099122.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 51506045662 in words is "fifty-one billion, five hundred six million, forty-five thousand, six hundred sixty-two".