161003376 has 50 divisors (see below), whose sum is σ = 465994232. Its totient is φ = 53667360.

The previous prime is 161003371. The next prime is 161003377. The reversal of 161003376 is 673300161.

161003376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161003371) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 60820 + ... + 63411.

Almost surely, 2^161003376 is an apocalyptic number.

161003376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161003376 is an abundant number, since it is smaller than the sum of its proper divisors (304990856).

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

161003376 is a wasteful number, since it uses less digits than its factorization.

161003376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124251 (or 124236 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 161003376 is about 12688.7105727887. The cubic root of 161003376 is about 544.0159849686.

The spelling of 161003376 in words is "one hundred sixty-one million, three thousand, three hundred seventy-six".