161153849184898 has 16 divisors (see below), whose sum is σ = 246300116939640. Its totient is φ = 79053913725696.

The previous prime is 161153849184883. The next prime is 161153849184907. The reversal of 161153849184898 is 898481948351161.

It can be written as a sum of positive squares in 4 ways, for example, as 155856822653169 + 5297026531729 = 12484263^2 + 2301527^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22750215 + ... + 28980682.

Almost surely, 2^{161153849184898} is an apocalyptic number.

161153849184898 is a deficient number, since it is larger than the sum of its proper divisors (85146267754742).

161153849184898 is a wasteful number, since it uses less digits than its factorization.

161153849184898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51760341.

The product of its digits is 477757440, while the sum is 76.

The spelling of 161153849184898 in words is "one hundred sixty-one trillion, one hundred fifty-three billion, eight hundred forty-nine million, one hundred eighty-four thousand, eight hundred ninety-eight".