22720452770 has 8 divisors (see below), whose sum is σ = 40896815004. Its totient is φ = 9088181104.

The previous prime is 22720452751. The next prime is 22720452787. The reversal of 22720452770 is 7725402722.

It can be written as a sum of positive squares in 2 ways, for example, as 21639292609 + 1081160161 = 147103^2 + 32881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136022629 + ... + 1136022648.

Almost surely, 2^22720452770 is an apocalyptic number.

22720452770 is a deficient number, since it is larger than the sum of its proper divisors (18176362234).

22720452770 is a wasteful number, since it uses less digits than its factorization.

22720452770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272045284.

The product of its (nonzero) digits is 109760, while the sum is 38.

The spelling of 22720452770 in words is "twenty-two billion, seven hundred twenty million, four hundred fifty-two thousand, seven hundred seventy".