20456654444 has 12 divisors (see below), whose sum is σ = 35809279968. Its totient is φ = 10225431600.

The previous prime is 20456654443. The next prime is 20456654507. The reversal of 20456654444 is 44445665402.

It is a super-2 number, since 2×20456654444² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20456654395 and 20456654404.

It is not an unprimeable number, because it can be changed into a prime (20456654443) 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, 707972 + ... + 736299.

It is an arithmetic number, because the mean of its divisors is an integer number (2984106664).

Almost surely, 2^20456654444 is an apocalyptic number.

It is an amenable number.

20456654444 is a deficient number, since it is larger than the sum of its proper divisors (15352625524).

20456654444 is a wasteful number, since it uses less digits than its factorization.

20456654444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447816 (or 1447814 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 44.

The spelling of 20456654444 in words is "twenty billion, four hundred fifty-six million, six hundred fifty-four thousand, four hundred forty-four".