20440722466 has 8 divisors (see below), whose sum is σ = 30680003484. Its totient is φ = 10214054640.

The previous prime is 20440722439. The next prime is 20440722469. The reversal of 20440722466 is 66422704402.

It can be written as a sum of positive squares in 2 ways, for example, as 20440706841 + 15625 = 142971^2 + 125^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20440722469) 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, 3149245 + ... + 3155728.

Almost surely, 2^20440722466 is an apocalyptic number.

20440722466 is a deficient number, since it is larger than the sum of its proper divisors (10239281018).

20440722466 is a wasteful number, since it uses less digits than its factorization.

20440722466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306596.

The product of its (nonzero) digits is 129024, while the sum is 37.

The spelling of 20440722466 in words is "twenty billion, four hundred forty million, seven hundred twenty-two thousand, four hundred sixty-six".