51660595825412 has 36 divisors (see below), whose sum is σ = 106735857926544. Its totient is φ = 21809803775760.

The previous prime is 51660595825361. The next prime is 51660595825417. The reversal of 51660595825412 is 21452859506615.

It is a super-2 number, since 2×51660595825412² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51660595825417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1966960514 + ... + 1966986777.

It is an arithmetic number, because the mean of its divisors is an integer number (2964884942404).

Almost surely, 2^{51660595825412} is an apocalyptic number.

It is an amenable number.

51660595825412 is an abundant number, since it is smaller than the sum of its proper divisors (55075262101132).

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

51660595825412 is a wasteful number, since it uses less digits than its factorization.

51660595825412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933947376 (or 3933947367 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 59.

The spelling of 51660595825412 in words is "fifty-one trillion, six hundred sixty billion, five hundred ninety-five million, eight hundred twenty-five thousand, four hundred twelve".