22245778902457 has 16 divisors (see below), whose sum is σ = 25257997914624. Its totient is φ = 19571066446800.

The previous prime is 22245778902377. The next prime is 22245778902463. The reversal of 22245778902457 is 75420987754222.

It is not a de Polignac number, because 22245778902457 - 2³¹ = 22243631418809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22245778902497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269532658 + ... + 269615179.

It is an arithmetic number, because the mean of its divisors is an integer number (1578624869664).

Almost surely, 2^{22245778902457} is an apocalyptic number.

It is an amenable number.

22245778902457 is a deficient number, since it is larger than the sum of its proper divisors (3012219012167).

22245778902457 is an equidigital number, since it uses as much as digits as its factorization.

22245778902457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539147901 (or 539147879 counting only the distinct ones).

The product of its (nonzero) digits is 158054400, while the sum is 64.

The spelling of 22245778902457 in words is "twenty-two trillion, two hundred forty-five billion, seven hundred seventy-eight million, nine hundred two thousand, four hundred fifty-seven".