51515560066110 has 32 divisors (see below), whose sum is σ = 141299821896192. Its totient is φ = 11774985157920.

The previous prime is 51515560066067. The next prime is 51515560066111. The reversal of 51515560066110 is 1166006551515.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51515560066111) 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, 122656095186 + ... + 122656095605.

It is an arithmetic number, because the mean of its divisors is an integer number (4415619434256).

Almost surely, 2^{51515560066110} is an apocalyptic number.

51515560066110 is an abundant number, since it is smaller than the sum of its proper divisors (89784261830082).

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

51515560066110 is a wasteful number, since it uses less digits than its factorization.

51515560066110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245312190808.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 51515560066110 in words is "fifty-one trillion, five hundred fifteen billion, five hundred sixty million, sixty-six thousand, one hundred ten".