20492221077804 has 48 divisors (see below), whose sum is σ = 54649093334528. Its totient is φ = 5854580615808.

The previous prime is 20492221077793. The next prime is 20492221077829. The reversal of 20492221077804 is 40877012229402.

It is a super-2 number, since 2×20492221077804² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5618704 + ... + 8517879.

Almost surely, 2^{20492221077804} is an apocalyptic number.

It is an amenable number.

20492221077804 is an abundant number, since it is smaller than the sum of its proper divisors (34156872256724).

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

20492221077804 is a wasteful number, since it uses less digits than its factorization.

20492221077804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14153854 (or 14153852 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 20492221077804 in words is "twenty trillion, four hundred ninety-two billion, two hundred twenty-one million, seventy-seven thousand, eight hundred four".