160661031 has 8 divisors (see below), whose sum is σ = 214275840. Its totient is φ = 107076792.

The previous prime is 160661023. The next prime is 160661047. The reversal of 160661031 is 130166061.

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

It is not a de Polignac number, because 160661031 - 2³ = 160661023 is a prime.

It is a super-2 number, since 2×160661031² = 51623933763965922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 160660992 and 160661010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160665031) 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, 11410 + ... + 21248.

It is an arithmetic number, because the mean of its divisors is an integer number (26784480).

Almost surely, 2^160661031 is an apocalyptic number.

160661031 is a deficient number, since it is larger than the sum of its proper divisors (53614809).

160661031 is an equidigital number, since it uses as much as digits as its factorization.

160661031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15285.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 160661031 is about 12675.2132526439. The cubic root of 160661031 is about 543.6301269905.

The spelling of 160661031 in words is "one hundred sixty million, six hundred sixty-one thousand, thirty-one".