161374522072 has 16 divisors (see below), whose sum is σ = 302581600560. Its totient is φ = 80686095264.

The previous prime is 161374522061. The next prime is 161374522079. The reversal of 161374522072 is 270225473161.

161374522072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161374522079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815773 + ... + 994099.

It is an arithmetic number, because the mean of its divisors is an integer number (18911350035).

Almost surely, 2^161374522072 is an apocalyptic number.

It is an amenable number.

161374522072 is a deficient number, since it is larger than the sum of its proper divisors (141207078488).

161374522072 is a wasteful number, since it uses less digits than its factorization.

161374522072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291450 (or 291446 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 161374522072 in words is "one hundred sixty-one billion, three hundred seventy-four million, five hundred twenty-two thousand, seventy-two".