161360664663 has 16 divisors (see below), whose sum is σ = 234718062336. Its totient is φ = 97789491840.

The previous prime is 161360664631. The next prime is 161360664677. The reversal of 161360664663 is 366466063161.

It is not a de Polignac number, because 161360664663 - 2⁵ = 161360664631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161360664613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622206 + ... + 842532.

It is an arithmetic number, because the mean of its divisors is an integer number (14669878896).

Almost surely, 2^161360664663 is an apocalyptic number.

161360664663 is a deficient number, since it is larger than the sum of its proper divisors (73357397673).

161360664663 is a wasteful number, since it uses less digits than its factorization.

161360664663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242534.

The product of its (nonzero) digits is 1679616, while the sum is 48.

The spelling of 161360664663 in words is "one hundred sixty-one billion, three hundred sixty million, six hundred sixty-four thousand, six hundred sixty-three".