51516551010660 has 48 divisors (see below), whose sum is σ = 144250991719296. Its totient is φ = 13737304184832.

The previous prime is 51516551010629. The next prime is 51516551010671. The reversal of 51516551010660 is 6601015561515.

51516551010660 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-3 number, since 3×51516551010660³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11956669 + ... + 15684228.

It is an arithmetic number, because the mean of its divisors is an integer number (3005228994152).

Almost surely, 2^{51516551010660} is an apocalyptic number.

It is an amenable number.

51516551010660 is an abundant number, since it is smaller than the sum of its proper divisors (92734440708636).

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

51516551010660 is a wasteful number, since it uses less digits than its factorization.

51516551010660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27671972 (or 27671970 counting only the distinct ones).

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

The spelling of 51516551010660 in words is "fifty-one trillion, five hundred sixteen billion, five hundred fifty-one million, ten thousand, six hundred sixty".