161571096 has 48 divisors (see below), whose sum is σ = 439030800. Its totient is φ = 53679552.

The previous prime is 161571071. The next prime is 161571097. The reversal of 161571096 is 690175161.

It is a happy number.

It is a super-2 number, since 2×161571096² = 52210438125282432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 161571096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161571097) 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, 19285 + ... + 26363.

It is an arithmetic number, because the mean of its divisors is an integer number (9146475).

Almost surely, 2^161571096 is an apocalyptic number.

It is an amenable number.

161571096 is an abundant number, since it is smaller than the sum of its proper divisors (277459704).

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

161571096 is a wasteful number, since it uses less digits than its factorization.

161571096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7408 (or 7401 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 161571096 is about 12711.0619540619. The cubic root of 161571096 is about 544.6546598787.

The spelling of 161571096 in words is "one hundred sixty-one million, five hundred seventy-one thousand, ninety-six".