20256036104 has 8 divisors (see below), whose sum is σ = 37980067710. Its totient is φ = 10128018048.

The previous prime is 20256036091. The next prime is 20256036107. The reversal of 20256036104 is 40163065202.

It can be written as a sum of positive squares in only one way, i.e., 13149208900 + 7106827204 = 114670^2 + 84302^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20256036107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1266002249 + ... + 1266002264.

Almost surely, 2^20256036104 is an apocalyptic number.

It is an amenable number.

20256036104 is a deficient number, since it is larger than the sum of its proper divisors (17724031606).

20256036104 is a wasteful number, since it uses less digits than its factorization.

20256036104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532004519 (or 2532004515 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 20256036104 in words is "twenty billion, two hundred fifty-six million, thirty-six thousand, one hundred four".