20645003054044 has 12 divisors (see below), whose sum is σ = 37374574494600. Its totient is φ = 9966553198448.

The previous prime is 20645003053991. The next prime is 20645003054089. The reversal of 20645003054044 is 44045030054602.

It is a super-2 number, since 2×20645003054044² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20645003053994 and 20645003054012.

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, 88987082014 + ... + 88987082245.

It is an arithmetic number, because the mean of its divisors is an integer number (3114547874550).

Almost surely, 2^{20645003054044} is an apocalyptic number.

It is an amenable number.

20645003054044 is a deficient number, since it is larger than the sum of its proper divisors (16729571440556).

20645003054044 is a wasteful number, since it uses less digits than its factorization.

20645003054044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177974164292 (or 177974164290 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

The spelling of 20645003054044 in words is "twenty trillion, six hundred forty-five billion, three million, fifty-four thousand, forty-four".