166315225288653 has 48 divisors (see below), whose sum is σ = 286763872916160. Its totient is φ = 94989680063712.

The previous prime is 166315225288627. The next prime is 166315225288679. The reversal of 166315225288653 is 356882522513661.

166315225288653 is a `hidden beast` number, since 1 + 6 + 6 + 3 + 1 + 5 + 22 + 528 + 86 + 5 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (166315225288627) and next prime (166315225288679).

It is not a de Polignac number, because 166315225288653 - 2⁹ = 166315225288141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166315225283653) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28832851 + ... + 34116912.

It is an arithmetic number, because the mean of its divisors is an integer number (5974247352420).

Almost surely, 2^{166315225288653} is an apocalyptic number.

It is an amenable number.

166315225288653 is a deficient number, since it is larger than the sum of its proper divisors (120448647627507).

166315225288653 is a wasteful number, since it uses less digits than its factorization.

166315225288653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62951783 (or 62951770 counting only the distinct ones).

The product of its digits is 124416000, while the sum is 63.

The spelling of 166315225288653 in words is "one hundred sixty-six trillion, three hundred fifteen billion, two hundred twenty-five million, two hundred eighty-eight thousand, six hundred fifty-three".