51106664065135 has 16 divisors (see below), whose sum is σ = 70094804567616. Its totient is φ = 35041737005568.

The previous prime is 51106664065111. The next prime is 51106664065151. The reversal of 51106664065135 is 53156046660115.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51106664065135 is a prime.

It is a super-2 number, since 2×51106664065135² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58574074 + ... + 59440183.

It is an arithmetic number, because the mean of its divisors is an integer number (4380925285476).

Almost surely, 2^{51106664065135} is an apocalyptic number.

51106664065135 is a deficient number, since it is larger than the sum of its proper divisors (18988140502481).

51106664065135 is a wasteful number, since it uses less digits than its factorization.

51106664065135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118026642.

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 51106664065135 in words is "fifty-one trillion, one hundred six billion, six hundred sixty-four million, sixty-five thousand, one hundred thirty-five".