161366996 has 36 divisors (see below), whose sum is σ = 329227668. Its totient is φ = 69003648.

The previous prime is 161366987. The next prime is 161366999. The reversal of 161366996 is 699663161.

161366996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 125126596 + 36240400 = 11186^2 + 6020^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 161366996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161366999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155696 + ... + 156728.

It is an arithmetic number, because the mean of its divisors is an integer number (9145213).

Almost surely, 2^161366996 is an apocalyptic number.

It is an amenable number.

161366996 is an abundant number, since it is smaller than the sum of its proper divisors (167860672).

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

161366996 is a wasteful number, since it uses less digits than its factorization.

161366996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848 (or 1839 counting only the distinct ones).

The product of its digits is 314928, while the sum is 47.

The square root of 161366996 is about 12703.0309768968. The cubic root of 161366996 is about 544.4252235089.

It can be divided in two parts, 16136 and 6996, that added together give a palindrome (23132).

The spelling of 161366996 in words is "one hundred sixty-one million, three hundred sixty-six thousand, nine hundred ninety-six".