20445080312 has 16 divisors (see below), whose sum is σ = 39226026840. Its totient is φ = 9984806496.

The previous prime is 20445080251. The next prime is 20445080329. The reversal of 20445080312 is 21308054402.

It is a happy number.

It is a congruent number.

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, 29716343 + ... + 29717030.

Almost surely, 2^20445080312 is an apocalyptic number.

It is an amenable number.

20445080312 is a deficient number, since it is larger than the sum of its proper divisors (18780946528).

20445080312 is a wasteful number, since it uses less digits than its factorization.

20445080312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59433422 (or 59433418 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 20445080312 in words is "twenty billion, four hundred forty-five million, eighty thousand, three hundred twelve".