20044502545455 has 128 divisors (see below), whose sum is σ = 37674518446080. Its totient is φ = 10097186112000.

The previous prime is 20044502545453. The next prime is 20044502545469. The reversal of 20044502545455 is 55454520544002.

20044502545455 is a `hidden beast` number, since 2 + 0 + 0 + 4 + 4 + 50 + 2 + 54 + 545 + 5 = 666.

It is not a de Polignac number, because 20044502545455 - 2¹ = 20044502545453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 20044502545455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044502545451) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 42128185 + ... + 42601325.

It is an arithmetic number, because the mean of its divisors is an integer number (294332175360).

Almost surely, 2^{20044502545455} is an apocalyptic number.

20044502545455 is a deficient number, since it is larger than the sum of its proper divisors (17630015900625).

20044502545455 is a wasteful number, since it uses less digits than its factorization.

20044502545455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473430 (or 473424 counting only the distinct ones).

The product of its (nonzero) digits is 3200000, while the sum is 45.

The spelling of 20044502545455 in words is "twenty trillion, forty-four billion, five hundred two million, five hundred forty-five thousand, four hundred fifty-five".