161363686 has 8 divisors (see below), whose sum is σ = 264049704. Its totient is φ = 73347120.

The previous prime is 161363681. The next prime is 161363687. The reversal of 161363686 is 686363161.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161363681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3667335 + ... + 3667378.

It is an arithmetic number, because the mean of its divisors is an integer number (33006213).

Almost surely, 2^161363686 is an apocalyptic number.

161363686 is a deficient number, since it is larger than the sum of its proper divisors (102686018).

161363686 is a wasteful number, since it uses less digits than its factorization.

161363686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7334726.

The product of its digits is 93312, while the sum is 40.

The square root of 161363686 is about 12702.9006923616. The cubic root of 161363686 is about 544.4215010215.

The spelling of 161363686 in words is "one hundred sixty-one million, three hundred sixty-three thousand, six hundred eighty-six".