166853503682 has 16 divisors (see below), whose sum is σ = 255560671512. Its totient is φ = 81683297280.

The previous prime is 166853503651. The next prime is 166853503699. The reversal of 166853503682 is 286305358661.

It can be written as a sum of positive squares in 4 ways, for example, as 154000520041 + 12852983641 = 392429^2 + 113371^2 .

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, 4150919 + ... + 4190922.

Almost surely, 2^166853503682 is an apocalyptic number.

166853503682 is a deficient number, since it is larger than the sum of its proper divisors (88707167830).

166853503682 is a wasteful number, since it uses less digits than its factorization.

166853503682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8342053.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 166853503682 in words is "one hundred sixty-six billion, eight hundred fifty-three million, five hundred three thousand, six hundred eighty-two".