51241116616 has 32 divisors (see below), whose sum is σ = 96576883200. Its totient is φ = 25487447040.

The previous prime is 51241116611. The next prime is 51241116643. The reversal of 51241116616 is 61661114215.

It is a super-2 number, since 2×51241116616² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51241116611) 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, 2686120 + ... + 2705128.

It is an arithmetic number, because the mean of its divisors is an integer number (3018027600).

Almost surely, 2^51241116616 is an apocalyptic number.

It is an amenable number.

51241116616 is a deficient number, since it is larger than the sum of its proper divisors (45335766584).

51241116616 is a wasteful number, since it uses less digits than its factorization.

51241116616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20749 (or 20745 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The spelling of 51241116616 in words is "fifty-one billion, two hundred forty-one million, one hundred sixteen thousand, six hundred sixteen".