20201400056 has 8 divisors (see below), whose sum is σ = 37877625120. Its totient is φ = 10100700024.

The previous prime is 20201400053. The next prime is 20201400097. The reversal of 20201400056 is 65000410202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201400053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262587496 + ... + 1262587511.

It is an arithmetic number, because the mean of its divisors is an integer number (4734703140).

Almost surely, 2^20201400056 is an apocalyptic number.

It is an amenable number.

20201400056 is a deficient number, since it is larger than the sum of its proper divisors (17676225064).

20201400056 is a wasteful number, since it uses less digits than its factorization.

20201400056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525175013 (or 2525175009 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20201400056 its reverse (65000410202), we get a palindrome (85201810258).

The spelling of 20201400056 in words is "twenty billion, two hundred one million, four hundred thousand, fifty-six".