161662083512829 has 32 divisors (see below), whose sum is σ = 216531002007936. Its totient is φ = 107284889214720.

The previous prime is 161662083512827. The next prime is 161662083512837. The reversal of 161662083512829 is 928215380266161.

It is not a de Polignac number, because 161662083512829 - 2¹ = 161662083512827 is a prime.

It is a super-2 number, since 2×161662083512829² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161662083512827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7803343579 + ... + 7803364295.

It is an arithmetic number, because the mean of its divisors is an integer number (6766593812748).

Almost surely, 2^{161662083512829} is an apocalyptic number.

It is an amenable number.

161662083512829 is a deficient number, since it is larger than the sum of its proper divisors (54868918495107).

161662083512829 is a wasteful number, since it uses less digits than its factorization.

161662083512829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31565.

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 161662083512829 in words is "one hundred sixty-one trillion, six hundred sixty-two billion, eighty-three million, five hundred twelve thousand, eight hundred twenty-nine".