51010051616 has 48 divisors (see below), whose sum is σ = 104692186368. Its totient is φ = 24437856000.

The previous prime is 51010051579. The next prime is 51010051657. The reversal of 51010051616 is 61615001015.

51010051616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51010051616² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154370 + ... + 354753.

It is an arithmetic number, because the mean of its divisors is an integer number (2181087216).

Almost surely, 2^51010051616 is an apocalyptic number.

It is an amenable number.

51010051616 is an abundant number, since it is smaller than the sum of its proper divisors (53682134752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51010051616 is a wasteful number, since it uses less digits than its factorization.

51010051616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509265 (or 509257 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

The spelling of 51010051616 in words is "fifty-one billion, ten million, fifty-one thousand, six hundred sixteen".