51105660532004 has 96 divisors (see below), whose sum is σ = 105512823158400. Its totient is φ = 21430945105920.

The previous prime is 51105660531997. The next prime is 51105660532007. The reversal of 51105660532004 is 40023506650115.

It is a super-2 number, since 2×51105660532004² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51105660532007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170560439 + ... + 170859809.

It is an arithmetic number, because the mean of its divisors is an integer number (1099091907900).

Almost surely, 2^{51105660532004} is an apocalyptic number.

It is an amenable number.

51105660532004 is an abundant number, since it is smaller than the sum of its proper divisors (54407162626396).

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

51105660532004 is a wasteful number, since it uses less digits than its factorization.

51105660532004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306093 (or 306091 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 51105660532004 in words is "fifty-one trillion, one hundred five billion, six hundred sixty million, five hundred thirty-two thousand, four".