20636424027556 has 24 divisors (see below), whose sum is σ = 36137140865280. Its totient is φ = 10311527110752.

The previous prime is 20636424027539. The next prime is 20636424027673. The reversal of 20636424027556 is 65572042463602.

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, 278010615 + ... + 278084833.

It is an arithmetic number, because the mean of its divisors is an integer number (1505714202720).

Almost surely, 2^{20636424027556} is an apocalyptic number.

It is an amenable number.

20636424027556 is a deficient number, since it is larger than the sum of its proper divisors (15500716837724).

20636424027556 is a wasteful number, since it uses less digits than its factorization.

20636424027556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118323 (or 118321 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 52.

The spelling of 20636424027556 in words is "twenty trillion, six hundred thirty-six billion, four hundred twenty-four million, twenty-seven thousand, five hundred fifty-six".