51666416132 has 12 divisors (see below), whose sum is σ = 90419589120. Its totient is φ = 25832247816.

The previous prime is 51666416117. The next prime is 51666416141. The reversal of 51666416132 is 23161466615.

It is a self number, because there is not a number n which added to its sum of digits gives 51666416132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111332 + ... + 340187.

It is an arithmetic number, because the mean of its divisors is an integer number (7534965760).

Almost surely, 2^51666416132 is an apocalyptic number.

It is an amenable number.

51666416132 is a deficient number, since it is larger than the sum of its proper divisors (38753172988).

51666416132 is a wasteful number, since it uses less digits than its factorization.

51666416132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480130 (or 480128 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The spelling of 51666416132 in words is "fifty-one billion, six hundred sixty-six million, four hundred sixteen thousand, one hundred thirty-two".