11550722020 has 24 divisors (see below), whose sum is σ = 24259032504. Its totient is φ = 4619809536.

The previous prime is 11550721997. The next prime is 11550722033. The reversal of 11550722020 is 2022705511.

It can be written as a sum of positive squares in 4 ways, for example, as 88021924 + 11462700096 = 9382^2 + 107064^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217542 + ... + 265378.

It is an arithmetic number, because the mean of its divisors is an integer number (1010793021).

Almost surely, 2^11550722020 is an apocalyptic number.

11550722020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11550722020 is an abundant number, since it is smaller than the sum of its proper divisors (12708310484).

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

11550722020 is a wasteful number, since it uses less digits than its factorization.

11550722020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59919 (or 59917 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The spelling of 11550722020 in words is "eleven billion, five hundred fifty million, seven hundred twenty-two thousand, twenty".