22651563137 has 4 divisors (see below), whose sum is σ = 25887500736. Its totient is φ = 19415625540.

The previous prime is 22651563119. The next prime is 22651563157. The reversal of 22651563137 is 73136515622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73136515622 = 2 ⋅36568257811.

It is a cyclic number.

It is not a de Polignac number, because 22651563137 - 2⁸ = 22651562881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22651563094 and 22651563103.

It is not an unprimeable number, because it can be changed into a prime (22651563157) 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, 1617968789 + ... + 1617968802.

It is an arithmetic number, because the mean of its divisors is an integer number (6471875184).

Almost surely, 2^22651563137 is an apocalyptic number.

It is an amenable number.

22651563137 is a deficient number, since it is larger than the sum of its proper divisors (3235937599).

22651563137 is an equidigital number, since it uses as much as digits as its factorization.

22651563137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235937598.

The product of its digits is 226800, while the sum is 41.

The spelling of 22651563137 in words is "twenty-two billion, six hundred fifty-one million, five hundred sixty-three thousand, one hundred thirty-seven".