664086232051 has 64 divisors (see below), whose sum is σ = 809184245760. Its totient is φ = 537567528960.

The previous prime is 664086232049. The next prime is 664086232079. The reversal of 664086232051 is 150232680466.

It is not a de Polignac number, because 664086232051 - 2¹ = 664086232049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 664086231989 and 664086232007.

It is not an unprimeable number, because it can be changed into a prime (664086232021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 415832785 + ... + 415834381.

It is an arithmetic number, because the mean of its divisors is an integer number (12643503840).

Almost surely, 2^664086232051 is an apocalyptic number.

664086232051 is a deficient number, since it is larger than the sum of its proper divisors (145098013709).

664086232051 is a wasteful number, since it uses less digits than its factorization.

664086232051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 664086232051 in words is "six hundred sixty-four billion, eighty-six million, two hundred thirty-two thousand, fifty-one".