20885254004 has 24 divisors (see below), whose sum is σ = 37208734080. Its totient is φ = 10254568896.

The previous prime is 20885253973. The next prime is 20885254007. The reversal of 20885254004 is 40045258802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20885254007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173909 + ... + 268355.

It is an arithmetic number, because the mean of its divisors is an integer number (1550363920).

Almost surely, 2^20885254004 is an apocalyptic number.

It is an amenable number.

20885254004 is a deficient number, since it is larger than the sum of its proper divisors (16323480076).

20885254004 is a wasteful number, since it uses less digits than its factorization.

20885254004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95447 (or 95445 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 38.

The spelling of 20885254004 in words is "twenty billion, eight hundred eighty-five million, two hundred fifty-four thousand, four".