10721563200 has 504 divisors, whose sum is σ = 40535352000. Its totient is φ = 2680197120.

The previous prime is 10721563199. The next prime is 10721563201. The reversal of 10721563200 is 236512701.

It is a happy number.

10721563200 is a `hidden beast` number, since 1 + 0 + 7 + 21 + 5 + 632 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (10721563199) and next prime (10721563201).

It is a super-2 number, since 2×10721563200² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10721563201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 40766269 + ... + 40766531.

Almost surely, 2^10721563200 is an apocalyptic number.

10721563200 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 10721563200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20267676000).

10721563200 is an abundant number, since it is smaller than the sum of its proper divisors (29813788800).

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

10721563200 is a wasteful number, since it uses less digits than its factorization.

10721563200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The spelling of 10721563200 in words is "ten billion, seven hundred twenty-one million, five hundred sixty-three thousand, two hundred".