161574241422 has 32 divisors (see below), whose sum is σ = 352831530240. Its totient is φ = 48919403520.

The previous prime is 161574241403. The next prime is 161574241441. The reversal of 161574241422 is 224142475161.

It is an interprime number because it is at equal distance from previous prime (161574241403) and next prime (161574241441).

It is a super-2 number, since 2×161574241422² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985522 + ... + 1137717.

It is an arithmetic number, because the mean of its divisors is an integer number (11025985320).

Almost surely, 2^161574241422 is an apocalyptic number.

161574241422 is an abundant number, since it is smaller than the sum of its proper divisors (191257288818).

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

161574241422 is a wasteful number, since it uses less digits than its factorization.

161574241422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124408.

The product of its digits is 107520, while the sum is 39.

The spelling of 161574241422 in words is "one hundred sixty-one billion, five hundred seventy-four million, two hundred forty-one thousand, four hundred twenty-two".