160861761 has 8 divisors (see below), whose sum is σ = 238313760. Its totient is φ = 107241156.

The previous prime is 160861739. The next prime is 160861763. The reversal of 160861761 is 167168061.

It is not a de Polignac number, because 160861761 - 2⁹ = 160861249 is a prime.

It is a super-2 number, since 2×160861761² = 51753012304042242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (160861763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2978895 + ... + 2978948.

It is an arithmetic number, because the mean of its divisors is an integer number (29789220).

Almost surely, 2^160861761 is an apocalyptic number.

It is an amenable number.

160861761 is a deficient number, since it is larger than the sum of its proper divisors (77451999).

160861761 is an equidigital number, since it uses as much as digits as its factorization.

160861761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5957852 (or 5957846 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 160861761 is about 12683.1289909076. The cubic root of 160861761 is about 543.8564367146.

The spelling of 160861761 in words is "one hundred sixty million, eight hundred sixty-one thousand, seven hundred sixty-one".