666150511157 has 8 divisors (see below), whose sum is σ = 693160229376. Its totient is φ = 639675638992.

The previous prime is 666150511141. The next prime is 666150511189. The reversal of 666150511157 is 751115051666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 666150511157 - 2⁴ = 666150511141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666150511457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133708973 + ... + 133713954.

It is an arithmetic number, because the mean of its divisors is an integer number (86645028672).

Almost surely, 2^666150511157 is an apocalyptic number.

It is an amenable number.

666150511157 is a deficient number, since it is larger than the sum of its proper divisors (27009718219).

666150511157 is a wasteful number, since it uses less digits than its factorization.

666150511157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267423027.

The product of its (nonzero) digits is 189000, while the sum is 44.

The spelling of 666150511157 in words is "six hundred sixty-six billion, one hundred fifty million, five hundred eleven thousand, one hundred fifty-seven".