51126755660 has 48 divisors (see below), whose sum is σ = 112200451776. Its totient is φ = 19532527872.

The previous prime is 51126755639. The next prime is 51126755671. The reversal of 51126755660 is 6655762115.

51126755660 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 2×51126755660² (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 15 ways as a sum of consecutive naturals, for example, 229334 + ... + 393506.

It is an arithmetic number, because the mean of its divisors is an integer number (2337509412).

Almost surely, 2^51126755660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51126755660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56100225888).

51126755660 is an abundant number, since it is smaller than the sum of its proper divisors (61073696116).

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

51126755660 is a wasteful number, since it uses less digits than its factorization.

51126755660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164882 (or 164880 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 51126755660 in words is "fifty-one billion, one hundred twenty-six million, seven hundred fifty-five thousand, six hundred sixty".