51520108411365 has 32 divisors (see below), whose sum is σ = 90260304912000. Its totient is φ = 24886586085120.

The previous prime is 51520108411349. The next prime is 51520108411411. The reversal of 51520108411365 is 56311480102515.

It is a happy number.

It is not a de Polignac number, because 51520108411365 - 2⁴ = 51520108411349 is a prime.

It is a super-2 number, since 2×51520108411365² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580333090 + ... + 580421859.

It is an arithmetic number, because the mean of its divisors is an integer number (2820634528500).

Almost surely, 2^{51520108411365} is an apocalyptic number.

51520108411365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51520108411365 is a deficient number, since it is larger than the sum of its proper divisors (38740196500635).

51520108411365 is a wasteful number, since it uses less digits than its factorization.

51520108411365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160755237.

The product of its (nonzero) digits is 144000, while the sum is 42.

The spelling of 51520108411365 in words is "fifty-one trillion, five hundred twenty billion, one hundred eight million, four hundred eleven thousand, three hundred sixty-five".