664475010207400 has 192 divisors, whose sum is σ = 1795730762304000. Its totient is φ = 223933673107200.

The previous prime is 664475010207367. The next prime is 664475010207409. The reversal of 664475010207400 is 4702010574466.

It is not an unprimeable number, because it can be changed into a prime (664475010207409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 747829395 + ... + 748717405.

It is an arithmetic number, because the mean of its divisors is an integer number (9352764387000).

Almost surely, 2^{664475010207400} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664475010207400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (897865381152000).

664475010207400 is an abundant number, since it is smaller than the sum of its proper divisors (1131255752096600).

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

664475010207400 is a wasteful number, since it uses less digits than its factorization.

664475010207400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897152 (or 897143 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 664475010207400 in words is "six hundred sixty-four trillion, four hundred seventy-five billion, ten million, two hundred seven thousand, four hundred".