20010691230400 has 168 divisors, whose sum is σ = 53166339966320. Its totient is φ = 7369065123840.

The previous prime is 20010691230331. The next prime is 20010691230403. The reversal of 20010691230400 is 403219601002.

It is not an unprimeable number, because it can be changed into a prime (20010691230403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6614002 + ... + 9152398.

Almost surely, 2^{20010691230400} is an apocalyptic number.

20010691230400 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 20010691230400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26583169983160).

20010691230400 is an abundant number, since it is smaller than the sum of its proper divisors (33155648735920).

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

20010691230400 is a wasteful number, since it uses less digits than its factorization.

20010691230400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538811 (or 2538796 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 20010691230400 in words is "twenty trillion, ten billion, six hundred ninety-one million, two hundred thirty thousand, four hundred".