22540499197 has 32 divisors (see below), whose sum is σ = 25446441600. Its totient is φ = 19871163648.

The previous prime is 22540499147. The next prime is 22540499203. The reversal of 22540499197 is 79199404522.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22540499197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540499147) 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, 2176243 + ... + 2186575.

It is an arithmetic number, because the mean of its divisors is an integer number (795201300).

Almost surely, 2^22540499197 is an apocalyptic number.

It is an amenable number.

22540499197 is a deficient number, since it is larger than the sum of its proper divisors (2905942403).

22540499197 is a wasteful number, since it uses less digits than its factorization.

22540499197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10525.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 22540499197 in words is "twenty-two billion, five hundred forty million, four hundred ninety-nine thousand, one hundred ninety-seven".