20541530590 has 96 divisors (see below), whose sum is σ = 43721290944. Its totient is φ = 6927137280.

The previous prime is 20541530579. The next prime is 20541530701. The reversal of 20541530590 is 9503514502.

20541530590 = T₁₆₆₄₄ + T₁₆₆₄₅ + ... + T₁₆₇₉₀.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 19923375 + ... + 19924405.

It is an arithmetic number, because the mean of its divisors is an integer number (455430114).

Almost surely, 2^20541530590 is an apocalyptic number.

20541530590 is an abundant number, since it is smaller than the sum of its proper divisors (23179760354).

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

20541530590 is a wasteful number, since it uses less digits than its factorization.

20541530590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

It can be divided in two parts, 2054 and 1530590, that added together give a square (1532644 = 1238²).

The spelling of 20541530590 in words is "twenty billion, five hundred forty-one million, five hundred thirty thousand, five hundred ninety".