20544364492 has 12 divisors (see below), whose sum is σ = 35953779400. Its totient is φ = 10271856096.

The previous prime is 20544364487. The next prime is 20544364499. The reversal of 20544364492 is 29446344502.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20544364499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110383 + ... + 230809.

Almost surely, 2^20544364492 is an apocalyptic number.

It is an amenable number.

20544364492 is a deficient number, since it is larger than the sum of its proper divisors (15409414908).

20544364492 is a wasteful number, since it uses less digits than its factorization.

20544364492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163080 (or 163078 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 20544364492 in words is "twenty billion, five hundred forty-four million, three hundred sixty-four thousand, four hundred ninety-two".