20056455045 has 96 divisors (see below), whose sum is σ = 38695273344. Its totient is φ = 9528076800.

The previous prime is 20056455019. The next prime is 20056455047. The reversal of 20056455045 is 54055465002.

20056455045 is a `hidden beast` number, since 2 + 0 + 0 + 5 + 64 + 550 + 45 = 666.

It is not a de Polignac number, because 20056455045 - 2¹³ = 20056446853 is a prime.

It is a super-2 number, since 2×20056455045² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20056455047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8846002 + ... + 8848268.

It is an arithmetic number, because the mean of its divisors is an integer number (403075764).

Almost surely, 2^20056455045 is an apocalyptic number.

It is an amenable number.

20056455045 is a deficient number, since it is larger than the sum of its proper divisors (18638818299).

20056455045 is a wasteful number, since it uses less digits than its factorization.

20056455045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643 (or 2640 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 20056455045 in words is "twenty billion, fifty-six million, four hundred fifty-five thousand, forty-five".