166415815962 has 72 divisors (see below), whose sum is σ = 396441995040. Its totient is φ = 50414324400.

The previous prime is 166415815921. The next prime is 166415815967. The reversal of 166415815962 is 269518514661.

It is a happy number.

166415815962 is a `hidden beast` number, since 1 + 6 + 6 + 4 + 1 + 581 + 59 + 6 + 2 = 666.

166415815962 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 166415815899 and 166415815908.

It is not an unprimeable number, because it can be changed into a prime (166415815967) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9206089 + ... + 9224147.

It is an arithmetic number, because the mean of its divisors is an integer number (5506138820).

Almost surely, 2^166415815962 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166415815962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198220997520).

166415815962 is an abundant number, since it is smaller than the sum of its proper divisors (230026179078).

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

166415815962 is a wasteful number, since it uses less digits than its factorization.

166415815962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22320 (or 22306 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 166415815962 in words is "one hundred sixty-six billion, four hundred fifteen million, eight hundred fifteen thousand, nine hundred sixty-two".