22720475507 has 2 divisors, whose sum is σ = 22720475508. Its totient is φ = 22720475506.

The previous prime is 22720475483. The next prime is 22720475513. The reversal of 22720475507 is 70557402722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22720475507 is a prime.

It is not a weakly prime, because it can be changed into another prime (22720475597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11360237753 + 11360237754.

It is an arithmetic number, because the mean of its divisors is an integer number (11360237754).

Almost surely, 2^22720475507 is an apocalyptic number.

22720475507 is a deficient number, since it is larger than the sum of its proper divisors (1).

22720475507 is an equidigital number, since it uses as much as digits as its factorization.

22720475507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 274400, while the sum is 41.

The spelling of 22720475507 in words is "twenty-two billion, seven hundred twenty million, four hundred seventy-five thousand, five hundred seven".