660150972 has 240 divisors, whose sum is σ = 2000681760. Its totient is φ = 188116992.

The previous prime is 660150961. The next prime is 660151001. The reversal of 660150972 is 279051066.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5841988 + ... + 5842100.

It is an arithmetic number, because the mean of its divisors is an integer number (8336174).

Almost surely, 2^660150972 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 660150972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000340880).

660150972 is an abundant number, since it is smaller than the sum of its proper divisors (1340530788).

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

660150972 is a wasteful number, since it uses less digits than its factorization.

660150972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 660150972 is about 25693.4032778844. The cubic root of 660150972 is about 870.7251504681.

The spelling of 660150972 in words is "six hundred sixty million, one hundred fifty thousand, nine hundred seventy-two".