666235115123076 has 192 divisors, whose sum is σ = 1732162646323200. Its totient is φ = 221451362640000.

The previous prime is 666235115123063. The next prime is 666235115123141. The reversal of 666235115123076 is 670321511532666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 237686447091 + ... + 237686449893.

It is an arithmetic number, because the mean of its divisors is an integer number (9021680449600).

Almost surely, 2^{666235115123076} is an apocalyptic number.

It is an amenable number.

666235115123076 is an abundant number, since it is smaller than the sum of its proper divisors (1065927531200124).

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

666235115123076 is a wasteful number, since it uses less digits than its factorization.

666235115123076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7047 (or 7039 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 666235115123076 in words is "six hundred sixty-six trillion, two hundred thirty-five billion, one hundred fifteen million, one hundred twenty-three thousand, seventy-six".