51615601060650 has 48 divisors (see below), whose sum is σ = 139643662510368. Its totient is φ = 12512872984000.

The previous prime is 51615601060633. The next prime is 51615601060733. The reversal of 51615601060650 is 5606010651615.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15641089581 + ... + 15641092880.

It is an arithmetic number, because the mean of its divisors is an integer number (2909242968966).

Almost surely, 2^{51615601060650} is an apocalyptic number.

51615601060650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51615601060650 is an abundant number, since it is smaller than the sum of its proper divisors (88028061449718).

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

51615601060650 is a wasteful number, since it uses less digits than its factorization.

51615601060650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31282182487 (or 31282182482 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 51615601060650 in words is "fifty-one trillion, six hundred fifteen billion, six hundred one million, sixty thousand, six hundred fifty".