667316545613766 has 12 divisors (see below), whose sum is σ = 1445852515496532. Its totient is φ = 222438848537916.

The previous prime is 667316545613743. The next prime is 667316545613791.

667316545613766 is a `hidden beast` number, since 6 + 6 + 7 + 3 + 1 + 6 + 54 + 561 + 3 + 7 + 6 + 6 = 666.

667316545613766 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×667316545613766² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 667316545613694 and 667316545613703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18536570711476 + ... + 18536570711511.

It is an arithmetic number, because the mean of its divisors is an integer number (120487709624711).

Almost surely, 2^{667316545613766} is an apocalyptic number.

667316545613766 is an abundant number, since it is smaller than the sum of its proper divisors (778535969882766).

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

667316545613766 is a wasteful number, since it uses less digits than its factorization.

667316545613766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37073141422995 (or 37073141422992 counting only the distinct ones).

The product of its digits is 2057529600, while the sum is 72.

The spelling of 667316545613766 in words is "six hundred sixty-seven trillion, three hundred sixteen billion, five hundred forty-five million, six hundred thirteen thousand, seven hundred sixty-six".