166863158514 has 40 divisors (see below), whose sum is σ = 402658396140. Its totient is φ = 51342509664.

The previous prime is 166863158513. The next prime is 166863158573. The reversal of 166863158514 is 415851368661.

166863158514 is a `hidden beast` number, since 1 + 6 + 68 + 63 + 1 + 5 + 8 + 514 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 165083753025 + 1779405489 = 406305^2 + 42183^2 .

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

It is not an unprimeable number, because it can be changed into a prime (166863158513) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39614029 + ... + 39618240.

Almost surely, 2^166863158514 is an apocalyptic number.

166863158514 is an abundant number, since it is smaller than the sum of its proper divisors (235795237626).

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

166863158514 is a wasteful number, since it uses less digits than its factorization.

166863158514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79232296 (or 79232287 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The spelling of 166863158514 in words is "one hundred sixty-six billion, eight hundred sixty-three million, one hundred fifty-eight thousand, five hundred fourteen".