5151615556655 has 16 divisors (see below), whose sum is σ = 6576603858144. Its totient is φ = 3860480225280.

The previous prime is 5151615556651. The next prime is 5151615556669. The reversal of 5151615556655 is 5566555161515.

It is not a de Polignac number, because 5151615556655 - 2² = 5151615556651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5151615556655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5151615556651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143601122 + ... + 143636991.

It is an arithmetic number, because the mean of its divisors is an integer number (411037741134).

Almost surely, 2^{5151615556655} is an apocalyptic number.

5151615556655 is a deficient number, since it is larger than the sum of its proper divisors (1424988301489).

5151615556655 is a wasteful number, since it uses less digits than its factorization.

5151615556655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287238346.

The product of its digits is 16875000, while the sum is 56.

The spelling of 5151615556655 in words is "five trillion, one hundred fifty-one billion, six hundred fifteen million, five hundred fifty-six thousand, six hundred fifty-five".