22616535451 has 4 divisors (see below), whose sum is σ = 22624986592. Its totient is φ = 22608084312.

The previous prime is 22616535439. The next prime is 22616535493. The reversal of 22616535451 is 15453561622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22616535451 - 2⁵ = 22616535419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22616530451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4221555 + ... + 4226908.

It is an arithmetic number, because the mean of its divisors is an integer number (5656246648).

Almost surely, 2^22616535451 is an apocalyptic number.

22616535451 is a deficient number, since it is larger than the sum of its proper divisors (8451141).

22616535451 is an equidigital number, since it uses as much as digits as its factorization.

22616535451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8451140.

The product of its digits is 216000, while the sum is 40.

The spelling of 22616535451 in words is "twenty-two billion, six hundred sixteen million, five hundred thirty-five thousand, four hundred fifty-one".