664167445032 has 64 divisors (see below), whose sum is σ = 2043592145280. Its totient is φ = 175165039872.

The previous prime is 664167445009. The next prime is 664167445033. The reversal of 664167445032 is 230544761466.

664167445032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×664167445032² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (664167445033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152050803 + ... + 152055170.

It is an arithmetic number, because the mean of its divisors is an integer number (31931127270).

Almost surely, 2^664167445032 is an apocalyptic number.

It is an amenable number.

664167445032 is an abundant number, since it is smaller than the sum of its proper divisors (1379424700248).

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

664167445032 is a wasteful number, since it uses less digits than its factorization.

664167445032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304106002 (or 304105998 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 664167445032 in words is "six hundred sixty-four billion, one hundred sixty-seven million, four hundred forty-five thousand, thirty-two".