64660020602 has 16 divisors (see below), whose sum is σ = 97619385600. Its totient is φ = 32120891280.

The previous prime is 64660020571. The next prime is 64660020613. The reversal of 64660020602 is 20602006646.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28424 + ... + 360732.

It is an arithmetic number, because the mean of its divisors is an integer number (6101211600).

Almost surely, 2^64660020602 is an apocalyptic number.

64660020602 is a deficient number, since it is larger than the sum of its proper divisors (32959364998).

64660020602 is a wasteful number, since it uses less digits than its factorization.

64660020602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332941.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 64660020602 in words is "sixty-four billion, six hundred sixty million, twenty thousand, six hundred two".