664235631150 has 288 divisors, whose sum is σ = 2127238848000. Its totient is φ = 134052272640.

The previous prime is 664235631149. The next prime is 664235631151. The reversal of 664235631150 is 51136532466.

664235631150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (664235631149) and next prime (664235631151).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664235631151) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3999976 + ... + 4162724.

It is an arithmetic number, because the mean of its divisors is an integer number (7386246000).

Almost surely, 2^664235631150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664235631150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1063619424000).

664235631150 is an abundant number, since it is smaller than the sum of its proper divisors (1463003216850).

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

664235631150 is a wasteful number, since it uses less digits than its factorization.

664235631150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162820 (or 162802 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 664235631150 in words is "six hundred sixty-four billion, two hundred thirty-five million, six hundred thirty-one thousand, one hundred fifty".