161607411 has 24 divisors (see below), whose sum is σ = 267487584. Its totient is φ = 92102400.

The previous prime is 161607409. The next prime is 161607419. The reversal of 161607411 is 114706161.

161607411 is a `hidden beast` number, since 1 + 616 + 0 + 7 + 41 + 1 = 666.

It is not a de Polignac number, because 161607411 - 2¹ = 161607409 is a prime.

It is a super-2 number, since 2×161607411² = 52233910580245842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161607419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22065 + ... + 28461.

It is an arithmetic number, because the mean of its divisors is an integer number (11145316).

Almost surely, 2^161607411 is an apocalyptic number.

161607411 is a deficient number, since it is larger than the sum of its proper divisors (105880173).

161607411 is a wasteful number, since it uses less digits than its factorization.

161607411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811 (or 6808 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 161607411 is about 12712.4903539786. The cubic root of 161607411 is about 544.6954626641.

The spelling of 161607411 in words is "one hundred sixty-one million, six hundred seven thousand, four hundred eleven".