166898812059 has 12 divisors (see below), whose sum is σ = 275515499376. Its totient is φ = 95370749712.

The previous prime is 166898812051. The next prime is 166898812103. The reversal of 166898812059 is 950218898661.

It is not a de Polignac number, because 166898812059 - 2³ = 166898812051 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 2649187493 = 166898812059 / (1 + 6 + 6 + 8 + 9 + 8 + 8 + 1 + 2 + 0 + 5 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 166898811987 and 166898812005.

It is not an unprimeable number, because it can be changed into a prime (166898812051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1324593684 + ... + 1324593809.

It is an arithmetic number, because the mean of its divisors is an integer number (22959624948).

Almost surely, 2^166898812059 is an apocalyptic number.

166898812059 is a deficient number, since it is larger than the sum of its proper divisors (108616687317).

166898812059 is a wasteful number, since it uses less digits than its factorization.

166898812059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649187506 (or 2649187503 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 63.

The spelling of 166898812059 in words is "one hundred sixty-six billion, eight hundred ninety-eight million, eight hundred twelve thousand, fifty-nine".