161745850374 has 8 divisors (see below), whose sum is σ = 323491700760. Its totient is φ = 53915283456.

The previous prime is 161745850361. The next prime is 161745850397. The reversal of 161745850374 is 473058547161.

It is a happy number.

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

161745850374 is an admirable number.

It is a super-2 number, since 2×161745850374² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13478820859 + ... + 13478820870.

It is an arithmetic number, because the mean of its divisors is an integer number (40436462595).

Almost surely, 2^161745850374 is an apocalyptic number.

161745850374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161745850374 is a wasteful number, since it uses less digits than its factorization.

161745850374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26957641734.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 161745850374 in words is "one hundred sixty-one billion, seven hundred forty-five million, eight hundred fifty thousand, three hundred seventy-four".