166872486753 has 48 divisors (see below), whose sum is σ = 287526710016. Its totient is φ = 91185177600.

The previous prime is 166872486751. The next prime is 166872486791. The reversal of 166872486753 is 357684278661.

166872486753 is a `hidden beast` number, since 1 + 6 + 6 + 87 + 2 + 486 + 75 + 3 = 666.

It is not a de Polignac number, because 166872486753 - 2¹ = 166872486751 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (166872486751) 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, 6212953 + ... + 6239753.

It is an arithmetic number, because the mean of its divisors is an integer number (5990139792).

Almost surely, 2^166872486753 is an apocalyptic number.

It is an amenable number.

166872486753 is a deficient number, since it is larger than the sum of its proper divisors (120654223263).

166872486753 is a wasteful number, since it uses less digits than its factorization.

166872486753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31134 (or 31131 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 166872486753 in words is "one hundred sixty-six billion, eight hundred seventy-two million, four hundred eighty-six thousand, seven hundred fifty-three".