64474017020 has 24 divisors (see below), whose sum is σ = 154737641184. Its totient is φ = 22105377216.

The previous prime is 64474017007. The next prime is 64474017143. The reversal of 64474017020 is 2071047446.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 230264207 + ... + 230264486.

It is an arithmetic number, because the mean of its divisors is an integer number (6447401716).

Almost surely, 2^64474017020 is an apocalyptic number.

It is an amenable number.

64474017020 is an abundant number, since it is smaller than the sum of its proper divisors (90263624164).

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

64474017020 is a wasteful number, since it uses less digits than its factorization.

64474017020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460528709 (or 460528707 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The spelling of 64474017020 in words is "sixty-four billion, four hundred seventy-four million, seventeen thousand, twenty".