64870066164 has 24 divisors (see below), whose sum is σ = 151457372640. Its totient is φ = 21609943264.

The previous prime is 64870066153. The next prime is 64870066243. The reversal of 64870066164 is 46166007846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1656354 + ... + 1695065.

It is an arithmetic number, because the mean of its divisors is an integer number (6310723860).

Almost surely, 2^64870066164 is an apocalyptic number.

It is an amenable number.

64870066164 is an abundant number, since it is smaller than the sum of its proper divisors (86587306476).

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

64870066164 is a wasteful number, since it uses less digits than its factorization.

64870066164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353039 (or 3353037 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 64870066164 in words is "sixty-four billion, eight hundred seventy million, sixty-six thousand, one hundred sixty-four".