666150672 has 40 divisors (see below), whose sum is σ = 1877335200. Its totient is φ = 201863680.

The previous prime is 666150643. The next prime is 666150691. The reversal of 666150672 is 276051666.

It is a self number, because there is not a number n which added to its sum of digits gives 666150672.

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, 630297 + ... + 631352.

It is an arithmetic number, because the mean of its divisors is an integer number (46933380).

Almost surely, 2^666150672 is an apocalyptic number.

It is an amenable number.

666150672 is an abundant number, since it is smaller than the sum of its proper divisors (1211184528).

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

666150672 is a wasteful number, since it uses less digits than its factorization.

666150672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261671 (or 1261665 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 666150672 is about 25809.8948467443. The cubic root of 666150672 is about 873.3550251331.

The spelling of 666150672 in words is "six hundred sixty-six million, one hundred fifty thousand, six hundred seventy-two".