20444544561452 has 48 divisors (see below), whose sum is σ = 39245651407872. Its totient is φ = 9241843850880.

The previous prime is 20444544561449. The next prime is 20444544561517. The reversal of 20444544561452 is 25416544544402.

It is a self number, because there is not a number n which added to its sum of digits gives 20444544561452.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7225853 + ... + 9648939.

It is an arithmetic number, because the mean of its divisors is an integer number (817617737664).

Almost surely, 2^{20444544561452} is an apocalyptic number.

20444544561452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20444544561452 is a deficient number, since it is larger than the sum of its proper divisors (18801106846420).

20444544561452 is a wasteful number, since it uses less digits than its factorization.

20444544561452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424158 (or 2424156 counting only the distinct ones).

The product of its (nonzero) digits is 12288000, while the sum is 50.

The spelling of 20444544561452 in words is "twenty trillion, four hundred forty-four billion, five hundred forty-four million, five hundred sixty-one thousand, four hundred fifty-two".