111565161100497 has 32 divisors (see below), whose sum is σ = 162415913435776. Its totient is φ = 67704440716800.

The previous prime is 111565161100489. The next prime is 111565161100531. The reversal of 111565161100497 is 794001161565111.

It is not a de Polignac number, because 111565161100497 - 2³ = 111565161100489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111565161100397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15229122 + ... + 21332052.

It is an arithmetic number, because the mean of its divisors is an integer number (5075497294868).

Almost surely, 2^{111565161100497} is an apocalyptic number.

It is an amenable number.

111565161100497 is a deficient number, since it is larger than the sum of its proper divisors (50850752335279).

111565161100497 is a wasteful number, since it uses less digits than its factorization.

111565161100497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6109441.

The product of its (nonzero) digits is 226800, while the sum is 48.

The spelling of 111565161100497 in words is "one hundred eleven trillion, five hundred sixty-five billion, one hundred sixty-one million, one hundred thousand, four hundred ninety-seven".