5151657221616 has 80 divisors (see below), whose sum is σ = 13888171100160. Its totient is φ = 1642427846400.

The previous prime is 5151657221597. The next prime is 5151657221647. The reversal of 5151657221616 is 6161227561515.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 14341290 + ... + 14696118.

It is an arithmetic number, because the mean of its divisors is an integer number (173602138752).

Almost surely, 2^{5151657221616} is an apocalyptic number.

It is an amenable number.

5151657221616 is an abundant number, since it is smaller than the sum of its proper divisors (8736513878544).

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

5151657221616 is a wasteful number, since it uses less digits than its factorization.

5151657221616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368014 (or 368008 counting only the distinct ones).

The product of its digits is 756000, while the sum is 48.

The spelling of 5151657221616 in words is "five trillion, one hundred fifty-one billion, six hundred fifty-seven million, two hundred twenty-one thousand, six hundred sixteen".