11020564500 has 384 divisors, whose sum is σ = 37531952640. Its totient is φ = 2483200000.

The previous prime is 11020564459. The next prime is 11020564631. The reversal of 11020564500 is 546502011.

It is a super-3 number, since 3×11020564500³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 28330306 + ... + 28330694.

It is an arithmetic number, because the mean of its divisors is an integer number (97739460).

Almost surely, 2^11020564500 is an apocalyptic number.

11020564500 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 11020564500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18765976320).

11020564500 is an abundant number, since it is smaller than the sum of its proper divisors (26511388140).

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

11020564500 is a wasteful number, since it uses less digits than its factorization.

11020564500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 11020564500 in words is "eleven billion, twenty million, five hundred sixty-four thousand, five hundred".