20544065190 has 96 divisors (see below), whose sum is σ = 59510370816. Its totient is φ = 4874402880.

The previous prime is 20544065173. The next prime is 20544065401. The reversal of 20544065190 is 9156044502.

20544065190 is a `hidden beast` number, since 20 + 5 + 440 + 6 + 5 + 190 = 666.

It is a super-2 number, since 2×20544065190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174232 + ... + 267291.

It is an arithmetic number, because the mean of its divisors is an integer number (619899696).

Almost surely, 2^20544065190 is an apocalyptic number.

20544065190 is an abundant number, since it is smaller than the sum of its proper divisors (38966305626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20544065190 is a wasteful number, since it uses less digits than its factorization.

20544065190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441594 (or 441591 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 20544065190 in words is "twenty billion, five hundred forty-four million, sixty-five thousand, one hundred ninety".