161384406692 has 12 divisors (see below), whose sum is σ = 283427776716. Its totient is φ = 80405041920.

The previous prime is 161384406661. The next prime is 161384406697. The reversal of 161384406692 is 296604483161.

It can be written as a sum of positive squares in 2 ways, for example, as 137006580736 + 24377825956 = 370144^2 + 156134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 161384406692.

It is not an unprimeable number, because it can be changed into a prime (161384406697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71789093 + ... + 71791340.

It is an arithmetic number, because the mean of its divisors is an integer number (23618981393).

Almost surely, 2^161384406692 is an apocalyptic number.

It is an amenable number.

161384406692 is a deficient number, since it is larger than the sum of its proper divisors (122043370024).

161384406692 is a wasteful number, since it uses less digits than its factorization.

161384406692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143580718 (or 143580716 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 161384406692 in words is "one hundred sixty-one billion, three hundred eighty-four million, four hundred six thousand, six hundred ninety-two".