20041545555 has 32 divisors (see below), whose sum is σ = 35640069120. Its totient is φ = 10685628000.

The previous prime is 20041545529. The next prime is 20041545571. The reversal of 20041545555 is 55554514002.

20041545555 is a `hidden beast` number, since 20 + 0 + 41 + 5 + 45 + 555 = 666.

It is not a de Polignac number, because 20041545555 - 2⁵ = 20041545523 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471430 + ... + 512180.

It is an arithmetic number, because the mean of its divisors is an integer number (1113752160).

Almost surely, 2^20041545555 is an apocalyptic number.

20041545555 is a deficient number, since it is larger than the sum of its proper divisors (15598523565).

20041545555 is a wasteful number, since it uses less digits than its factorization.

20041545555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44408 (or 44402 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 20041545555 in words is "twenty billion, forty-one million, five hundred forty-five thousand, five hundred fifty-five".