20101253554404 has 72 divisors (see below), whose sum is σ = 56928857364288. Its totient is φ = 5926659520320.

The previous prime is 20101253554387. The next prime is 20101253554411. The reversal of 20101253554404 is 40445535210102.

20101253554404 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 12 + 53 + 554 + 40 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 685941312 + ... + 685970615.

It is an arithmetic number, because the mean of its divisors is an integer number (790678574504).

Almost surely, 2^{20101253554404} is an apocalyptic number.

It is an amenable number.

20101253554404 is an abundant number, since it is smaller than the sum of its proper divisors (36827603809884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20101253554404 is a wasteful number, since it uses less digits than its factorization.

20101253554404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371911985 (or 1371911980 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 20101253554404 its reverse (40445535210102), we get a palindrome (60546788764506).

The spelling of 20101253554404 in words is "twenty trillion, one hundred one billion, two hundred fifty-three million, five hundred fifty-four thousand, four hundred four".