20208992827556 has 24 divisors (see below), whose sum is σ = 38086437258240. Its totient is φ = 9327164160672.

The previous prime is 20208992827523. The next prime is 20208992827561. The reversal of 20208992827556 is 65572829980202.

It is a super-2 number, since 2×20208992827556² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20208992827492 and 20208992827501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6905885 + ... + 9386651.

It is an arithmetic number, because the mean of its divisors is an integer number (1586934885760).

Almost surely, 2^{20208992827556} is an apocalyptic number.

20208992827556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20208992827556 is a deficient number, since it is larger than the sum of its proper divisors (17877444430684).

20208992827556 is a wasteful number, since it uses less digits than its factorization.

20208992827556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637443 (or 2637441 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 65.

The spelling of 20208992827556 in words is "twenty trillion, two hundred eight billion, nine hundred ninety-two million, eight hundred twenty-seven thousand, five hundred fifty-six".