22653842820 has 48 divisors (see below), whose sum is σ = 72492298368. Its totient is φ = 5178021120.

The previous prime is 22653842807. The next prime is 22653842831. The reversal of 22653842820 is 2824835622.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26968441 + ... + 26969280.

It is an arithmetic number, because the mean of its divisors is an integer number (1510256216).

Almost surely, 2^22653842820 is an apocalyptic number.

22653842820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22653842820 is an abundant number, since it is smaller than the sum of its proper divisors (49838455548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22653842820 is a wasteful number, since it uses less digits than its factorization.

22653842820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53937740 (or 53937738 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 22653842820 in words is "twenty-two billion, six hundred fifty-three million, eight hundred forty-two thousand, eight hundred twenty".