51600511660 has 12 divisors (see below), whose sum is σ = 108361074528. Its totient is φ = 20640204656.

The previous prime is 51600511639. The next prime is 51600511777. The reversal of 51600511660 is 6611500615.

It is a super-2 number, since 2×51600511660² (a number of 22 digits) contains 22 as substring.

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, 1290012772 + ... + 1290012811.

It is an arithmetic number, because the mean of its divisors is an integer number (9030089544).

Almost surely, 2^51600511660 is an apocalyptic number.

It is an amenable number.

51600511660 is an abundant number, since it is smaller than the sum of its proper divisors (56760562868).

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

51600511660 is a wasteful number, since it uses less digits than its factorization.

51600511660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580025592 (or 2580025590 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 51600511660 in words is "fifty-one billion, six hundred million, five hundred eleven thousand, six hundred sixty".