51705161051712 has 56 divisors (see below), whose sum is σ = 156346558422336. Its totient is φ = 14772903157248.

The previous prime is 51705161051699. The next prime is 51705161051723. The reversal of 51705161051712 is 21715016150715.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 19235549643 + ... + 19235552330.

Almost surely, 2^{51705161051712} is an apocalyptic number.

It is an amenable number.

51705161051712 is an abundant number, since it is smaller than the sum of its proper divisors (104641397370624).

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

51705161051712 is a wasteful number, since it uses less digits than its factorization.

51705161051712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38471101995 (or 38471101985 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 42.

The spelling of 51705161051712 in words is "fifty-one trillion, seven hundred five billion, one hundred sixty-one million, fifty-one thousand, seven hundred twelve".