11005501020 has 24 divisors (see below), whose sum is σ = 30815403024. Its totient is φ = 2934800256.

The previous prime is 11005501019. The next prime is 11005501033. The reversal of 11005501020 is 2010550011.

It is a super-2 number, since 2×11005501020² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 91712449 + ... + 91712568.

It is an arithmetic number, because the mean of its divisors is an integer number (1283975126).

Almost surely, 2^11005501020 is an apocalyptic number.

11005501020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11005501020 is an abundant number, since it is smaller than the sum of its proper divisors (19809902004).

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

11005501020 is a wasteful number, since it uses less digits than its factorization.

11005501020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183425029 (or 183425027 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The spelling of 11005501020 in words is "eleven billion, five million, five hundred one thousand, twenty".