11425564636500 has 576 divisors, whose sum is σ = 39824157364992. Its totient is φ = 2536603776000.

The previous prime is 11425564636459. The next prime is 11425564636523. The reversal of 11425564636500 is 563646552411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11425564636500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 572040514 + ... + 572060486.

It is an arithmetic number, because the mean of its divisors is an integer number (69139162092).

Almost surely, 2^{11425564636500} is an apocalyptic number.

11425564636500 is a gapful number since it is divisible by the number (10) 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 11425564636500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19912078682496).

11425564636500 is an abundant number, since it is smaller than the sum of its proper divisors (28398592728492).

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

11425564636500 is a wasteful number, since it uses less digits than its factorization.

11425564636500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20233 (or 20214 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 11425564636500 in words is "eleven trillion, four hundred twenty-five billion, five hundred sixty-four million, six hundred thirty-six thousand, five hundred".