51611660615110 has 16 divisors (see below), whose sum is σ = 92908983550032. Its totient is φ = 20642887703200.

The previous prime is 51611660615107. The next prime is 51611660615113. The reversal of 51611660615110 is 1151606611615.

It is an interprime number because it is at equal distance from previous prime (51611660615107) and next prime (51611660615113).

It is a super-2 number, since 2×51611660615110² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51611660615113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221945836 + ... + 222178255.

It is an arithmetic number, because the mean of its divisors is an integer number (5806811471877).

Almost surely, 2^{51611660615110} is an apocalyptic number.

51611660615110 is a deficient number, since it is larger than the sum of its proper divisors (41297322934922).

51611660615110 is a wasteful number, since it uses less digits than its factorization.

51611660615110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444135719.

The product of its (nonzero) digits is 32400, while the sum is 40.

The spelling of 51611660615110 in words is "fifty-one trillion, six hundred eleven billion, six hundred sixty million, six hundred fifteen thousand, one hundred ten".