160993491 has 8 divisors (see below), whose sum is σ = 223991040. Its totient is φ = 102662472.

The previous prime is 160993487. The next prime is 160993493. The reversal of 160993491 is 194399061.

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

It is not a de Polignac number, because 160993491 - 2² = 160993487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (160993493) 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, 1166551 + ... + 1166688.

It is an arithmetic number, because the mean of its divisors is an integer number (27998880).

Almost surely, 2^160993491 is an apocalyptic number.

160993491 is a deficient number, since it is larger than the sum of its proper divisors (62997549).

160993491 is a wasteful number, since it uses less digits than its factorization.

160993491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333265.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 160993491 is about 12688.3210473254. The cubic root of 160993491 is about 544.0048512309.

The spelling of 160993491 in words is "one hundred sixty million, nine hundred ninety-three thousand, four hundred ninety-one".