22729466465 has 4 divisors (see below), whose sum is σ = 27275359764. Its totient is φ = 18183573168.

The previous prime is 22729466447. The next prime is 22729466489. The reversal of 22729466465 is 56466492722.

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 3632713984 + 19096752481 = 60272^2 + 138191^2 .

It is a cyclic number.

It is not a de Polignac number, because 22729466465 - 2⁶ = 22729466401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272946642 + ... + 2272946651.

It is an arithmetic number, because the mean of its divisors is an integer number (6818839941).

Almost surely, 2^22729466465 is an apocalyptic number.

It is an amenable number.

22729466465 is a deficient number, since it is larger than the sum of its proper divisors (4545893299).

22729466465 is an equidigital number, since it uses as much as digits as its factorization.

22729466465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545893298.

The product of its digits is 8709120, while the sum is 53.

The spelling of 22729466465 in words is "twenty-two billion, seven hundred twenty-nine million, four hundred sixty-six thousand, four hundred sixty-five".