64604644662 has 32 divisors (see below), whose sum is σ = 134949639168. Its totient is φ = 20579858816.

The previous prime is 64604644661. The next prime is 64604644703. The reversal of 64604644662 is 26644640646.

It is a super-2 number, since 2×64604644662² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64604644661) 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 15 ways as a sum of consecutive naturals, for example, 60003 + ... + 364430.

It is an arithmetic number, because the mean of its divisors is an integer number (4217176224).

Almost surely, 2^64604644662 is an apocalyptic number.

64604644662 is an abundant number, since it is smaller than the sum of its proper divisors (70344994506).

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

64604644662 is a wasteful number, since it uses less digits than its factorization.

64604644662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425564.

The product of its (nonzero) digits is 3981312, while the sum is 48.

The spelling of 64604644662 in words is "sixty-four billion, six hundred four million, six hundred forty-four thousand, six hundred sixty-two".