161675671 has 8 divisors (see below), whose sum is σ = 169434720. Its totient is φ = 153977472.

The previous prime is 161675663. The next prime is 161675687. The reversal of 161675671 is 176576161.

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

It is a cyclic number.

It is not a de Polignac number, because 161675671 - 2³ = 161675663 is a prime.

It is a super-2 number, since 2×161675671² = 52278045186600482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161675651) 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, 9726 + ... + 20443.

It is an arithmetic number, because the mean of its divisors is an integer number (21179340).

Almost surely, 2^161675671 is an apocalyptic number.

161675671 is a deficient number, since it is larger than the sum of its proper divisors (7759049).

161675671 is a wasteful number, since it uses less digits than its factorization.

161675671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30425.

The product of its digits is 52920, while the sum is 40.

The square root of 161675671 is about 12715.1748316726. The cubic root of 161675671 is about 544.7721416531.

The spelling of 161675671 in words is "one hundred sixty-one million, six hundred seventy-five thousand, six hundred seventy-one".