51116066511657 has 16 divisors (see below), whose sum is σ = 77891374095360. Its totient is φ = 29209096441872.

The previous prime is 51116066511649. The next prime is 51116066511689. The reversal of 51116066511657 is 75611566061115.

It is not a de Polignac number, because 51116066511657 - 2³ = 51116066511649 is a prime.

It is a super-2 number, since 2×51116066511657² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51116066511617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4328178 + ... + 10998420.

It is an arithmetic number, because the mean of its divisors is an integer number (4868210880960).

Almost surely, 2^{51116066511657} is an apocalyptic number.

It is an amenable number.

51116066511657 is a deficient number, since it is larger than the sum of its proper divisors (26775307583703).

51116066511657 is a wasteful number, since it uses less digits than its factorization.

51116066511657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7035172.

The product of its (nonzero) digits is 1134000, while the sum is 51.

The spelling of 51116066511657 in words is "fifty-one trillion, one hundred sixteen billion, sixty-six million, five hundred eleven thousand, six hundred fifty-seven".