22961553805 has 4 divisors (see below), whose sum is σ = 27553864572. Its totient is φ = 18369243040.

The previous prime is 22961553803. The next prime is 22961553883. The reversal of 22961553805 is 50835516922.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3200504329 + 19761049476 = 56573^2 + 140574^2 .

It is not a de Polignac number, because 22961553805 - 2¹ = 22961553803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22961553803) 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, 2296155376 + ... + 2296155385.

It is an arithmetic number, because the mean of its divisors is an integer number (6888466143).

Almost surely, 2^22961553805 is an apocalyptic number.

It is an amenable number.

22961553805 is a deficient number, since it is larger than the sum of its proper divisors (4592310767).

22961553805 is an equidigital number, since it uses as much as digits as its factorization.

22961553805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4592310766.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 22961553805 in words is "twenty-two billion, nine hundred sixty-one million, five hundred fifty-three thousand, eight hundred five".