161040576 has 56 divisors (see below), whose sum is σ = 437621680. Its totient is φ = 52227072.

The previous prime is 161040563. The next prime is 161040589. The reversal of 161040576 is 675040161.

It is an interprime number because it is at equal distance from previous prime (161040563) and next prime (161040589).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4231 + ... + 18438.

Almost surely, 2^161040576 is an apocalyptic number.

161040576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161040576 is an abundant number, since it is smaller than the sum of its proper divisors (276581104).

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

161040576 is a wasteful number, since it uses less digits than its factorization.

161040576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22721 (or 22711 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 161040576 is about 12690.1763581126. The cubic root of 161040576 is about 544.0578802313.

The spelling of 161040576 in words is "one hundred sixty-one million, forty thousand, five hundred seventy-six".