50661015651 has 16 divisors (see below), whose sum is σ = 75513813120. Its totient is φ = 33566805000.

The previous prime is 50661015623. The next prime is 50661015653. The reversal of 50661015651 is 15651016605.

It is not a de Polignac number, because 50661015651 - 2¹⁰ = 50661014627 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (50661015653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5751225 + ... + 5760026.

It is an arithmetic number, because the mean of its divisors is an integer number (4719613320).

Almost surely, 2^50661015651 is an apocalyptic number.

50661015651 is a deficient number, since it is larger than the sum of its proper divisors (24852797469).

50661015651 is a wasteful number, since it uses less digits than its factorization.

50661015651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11511423 (or 11511417 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 50661015651 in words is "fifty billion, six hundred sixty-one million, fifteen thousand, six hundred fifty-one".