666123022011150 has 192 divisors, whose sum is σ = 2013980785194240. Its totient is φ = 160550932694400.

The previous prime is 666123022011131. The next prime is 666123022011191. The reversal of 666123022011150 is 51110220321666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 127074792 + ... + 132212891.

It is an arithmetic number, because the mean of its divisors is an integer number (10489483256220).

Almost surely, 2^{666123022011150} is an apocalyptic number.

666123022011150 is an abundant number, since it is smaller than the sum of its proper divisors (1347857763183090).

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

666123022011150 is a wasteful number, since it uses less digits than its factorization.

666123022011150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259287888 (or 259287877 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 666123022011150 in words is "six hundred sixty-six trillion, one hundred twenty-three billion, twenty-two million, eleven thousand, one hundred fifty".