166766953762 has 16 divisors (see below), whose sum is σ = 253277656632. Its totient is φ = 82344798720.

The previous prime is 166766953751. The next prime is 166766953799. The reversal of 166766953762 is 267359667661.

It can be written as a sum of positive squares in 4 ways, for example, as 66106066321 + 100660887441 = 257111^2 + 317271^2 .

It is a super-2 number, since 2×166766953762² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166766953694 and 166766953703.

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, 842913 + ... + 1021780.

Almost surely, 2^166766953762 is an apocalyptic number.

166766953762 is a deficient number, since it is larger than the sum of its proper divisors (86510702870).

166766953762 is a wasteful number, since it uses less digits than its factorization.

166766953762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865253.

The product of its digits is 102876480, while the sum is 64.

The spelling of 166766953762 in words is "one hundred sixty-six billion, seven hundred sixty-six million, nine hundred fifty-three thousand, seven hundred sixty-two".