20424560651 has 16 divisors (see below), whose sum is σ = 22439440608. Its totient is φ = 18436204800.

The previous prime is 20424560647. The next prime is 20424560659. The reversal of 20424560651 is 15606542402.

It is a cyclic number.

It is not a de Polignac number, because 20424560651 - 2² = 20424560647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20424560659) 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, 3003311 + ... + 3010103.

It is an arithmetic number, because the mean of its divisors is an integer number (1402465038).

Almost surely, 2^20424560651 is an apocalyptic number.

20424560651 is a deficient number, since it is larger than the sum of its proper divisors (2014879957).

20424560651 is a wasteful number, since it uses less digits than its factorization.

20424560651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8702.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 20424560651 in words is "twenty billion, four hundred twenty-four million, five hundred sixty thousand, six hundred fifty-one".