51651106610 has 8 divisors (see below), whose sum is σ = 92971991916. Its totient is φ = 20660442640.

The previous prime is 51651106609. The next prime is 51651106627. The reversal of 51651106610 is 1660115615.

It can be written as a sum of positive squares in 2 ways, for example, as 47515716361 + 4135390249 = 217981^2 + 64307^2 .

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

It is a Curzon 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, 2582555321 + ... + 2582555340.

Almost surely, 2^51651106610 is an apocalyptic number.

51651106610 is a deficient number, since it is larger than the sum of its proper divisors (41320885306).

51651106610 is a wasteful number, since it uses less digits than its factorization.

51651106610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165110668.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 51651106610 in words is "fifty-one billion, six hundred fifty-one million, one hundred six thousand, six hundred ten".