20153893100400 has 240 divisors, whose sum is σ = 71791250065920. Its totient is φ = 5370002092800.

The previous prime is 20153893100377. The next prime is 20153893100417. The reversal of 20153893100400 is 400139835102.

20153893100400 is a `hidden beast` number, since 2 + 0 + 153 + 8 + 93 + 10 + 0 + 400 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12536839 + ... + 14052761.

It is an arithmetic number, because the mean of its divisors is an integer number (299130208608).

Almost surely, 2^{20153893100400} is an apocalyptic number.

20153893100400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20153893100400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35895625032960).

20153893100400 is an abundant number, since it is smaller than the sum of its proper divisors (51637356965520).

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

20153893100400 is a wasteful number, since it uses less digits than its factorization.

20153893100400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517181 (or 1517164 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 20153893100400 in words is "twenty trillion, one hundred fifty-three billion, eight hundred ninety-three million, one hundred thousand, four hundred".