11452520000 has 140 divisors (see below), whose sum is σ = 28726538940. Its totient is φ = 4528128000.

The previous prime is 11452519993. The next prime is 11452520063. The reversal of 11452520000 is 2525411.

It can be written as a sum of positive squares in 10 ways, for example, as 8127383104 + 3325136896 = 90152^2 + 57664^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3558392 + ... + 3561608.

Almost surely, 2^11452520000 is an apocalyptic number.

11452520000 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 11452520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14363269470).

11452520000 is an abundant number, since it is smaller than the sum of its proper divisors (17274018940).

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

11452520000 is an frugal number, since it uses more digits than its factorization.

11452520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338 (or 3313 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The spelling of 11452520000 in words is "eleven billion, four hundred fifty-two million, five hundred twenty thousand".