161041570 has 8 divisors (see below), whose sum is σ = 289874844. Its totient is φ = 64416624.

The previous prime is 161041541. The next prime is 161041583. The reversal of 161041570 is 75140161.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 160706329 + 335241 = 12677^2 + 579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8052069 + ... + 8052088.

Almost surely, 2^161041570 is an apocalyptic number.

161041570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161041570 is a deficient number, since it is larger than the sum of its proper divisors (128833274).

161041570 is a wasteful number, since it uses less digits than its factorization.

161041570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16104164.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 161041570 is about 12690.2155222045. The cubic root of 161041570 is about 544.0589996023.

The spelling of 161041570 in words is "one hundred sixty-one million, forty-one thousand, five hundred seventy".