161446023072 has 48 divisors (see below), whose sum is σ = 470884236480. Its totient is φ = 53815340736.

The previous prime is 161446023041. The next prime is 161446023077. The reversal of 161446023072 is 270320644161.

161446023072 is a `hidden beast` number, since 1 + 6 + 1 + 44 + 602 + 3 + 0 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (161446023077) 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, 93428548 + ... + 93430275.

It is an arithmetic number, because the mean of its divisors is an integer number (9810088260).

Almost surely, 2^161446023072 is an apocalyptic number.

161446023072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161446023072 is an abundant number, since it is smaller than the sum of its proper divisors (309438213408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161446023072 is a wasteful number, since it uses less digits than its factorization.

161446023072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186858842 (or 186858828 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 161446023072 in words is "one hundred sixty-one billion, four hundred forty-six million, twenty-three thousand, seventy-two".