161223654046 has 48 divisors (see below), whose sum is σ = 303013751040. Its totient is φ = 63769204800.

The previous prime is 161223654043. The next prime is 161223654049. The reversal of 161223654046 is 640456322161.

161223654046 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161223654043) and next prime (161223654049).

It is a super-3 number, since 3×161223654046³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161223654043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11651460 + ... + 11665288.

It is an arithmetic number, because the mean of its divisors is an integer number (6312786480).

Almost surely, 2^161223654046 is an apocalyptic number.

161223654046 is a deficient number, since it is larger than the sum of its proper divisors (141790096994).

161223654046 is a wasteful number, since it uses less digits than its factorization.

161223654046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23009 (or 23002 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 161223654046 in words is "one hundred sixty-one billion, two hundred twenty-three million, six hundred fifty-four thousand, forty-six".