20440054755 has 80 divisors (see below), whose sum is σ = 37911650304. Its totient is φ = 10524893760.

The previous prime is 20440054741. The next prime is 20440054763. The reversal of 20440054755 is 55745004402.

It is a happy number.

20440054755 is a `hidden beast` number, since 20 + 4 + 40 + 0 + 547 + 55 = 666.

It is not a de Polignac number, because 20440054755 - 2⁷ = 20440054627 is a prime.

It is a super-2 number, since 2×20440054755² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6112614 + ... + 6115956.

Almost surely, 2^20440054755 is an apocalyptic number.

20440054755 is a deficient number, since it is larger than the sum of its proper divisors (17471595549).

20440054755 is a wasteful number, since it uses less digits than its factorization.

20440054755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878 (or 3869 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 36.

The spelling of 20440054755 in words is "twenty billion, four hundred forty million, fifty-four thousand, seven hundred fifty-five".