22661652651 has 16 divisors (see below), whose sum is σ = 33203011968. Its totient is φ = 13634081600.

The previous prime is 22661652649. The next prime is 22661652691. The reversal of 22661652651 is 15625616622.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22661652651 - 2¹ = 22661652649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22661652631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2501745 + ... + 2510786.

It is an arithmetic number, because the mean of its divisors is an integer number (2075188248).

Almost surely, 2^22661652651 is an apocalyptic number.

22661652651 is a deficient number, since it is larger than the sum of its proper divisors (10541359317).

22661652651 is a wasteful number, since it uses less digits than its factorization.

22661652651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012682.

The product of its digits is 259200, while the sum is 42.

The spelling of 22661652651 in words is "twenty-two billion, six hundred sixty-one million, six hundred fifty-two thousand, six hundred fifty-one".