655815200051 has 24 divisors (see below), whose sum is σ = 726820953600. Its totient is φ = 591264938880.

The previous prime is 655815200041. The next prime is 655815200071. The reversal of 655815200051 is 150002518556.

It is a de Polignac number, because none of the positive numbers 2^k-655815200051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 655815199978 and 655815200014.

It is not an unprimeable number, because it can be changed into a prime (655815200021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46846985 + ... + 46860981.

It is an arithmetic number, because the mean of its divisors is an integer number (30284206400).

Almost surely, 2^655815200051 is an apocalyptic number.

655815200051 is a deficient number, since it is larger than the sum of its proper divisors (71005753549).

655815200051 is a wasteful number, since it uses less digits than its factorization.

655815200051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17195 (or 17184 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 38.

The spelling of 655815200051 in words is "six hundred fifty-five billion, eight hundred fifteen million, two hundred thousand, fifty-one".