51699586160 has 40 divisors (see below), whose sum is σ = 120285336960. Its totient is φ = 20665417472.

The previous prime is 51699586153. The next prime is 51699586171. The reversal of 51699586160 is 6168599615.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 51699586096 and 51699586105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109427 + ... + 339666.

It is an arithmetic number, because the mean of its divisors is an integer number (3007133424).

Almost surely, 2^51699586160 is an apocalyptic number.

It is an amenable number.

51699586160 is an abundant number, since it is smaller than the sum of its proper divisors (68585750800).

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

51699586160 is a wasteful number, since it uses less digits than its factorization.

51699586160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450545 (or 450539 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 56.

The spelling of 51699586160 in words is "fifty-one billion, six hundred ninety-nine million, five hundred eighty-six thousand, one hundred sixty".