11683540220 has 48 divisors (see below), whose sum is σ = 26877112416. Its totient is φ = 4230912000.

The previous prime is 11683540201. The next prime is 11683540247. The reversal of 11683540220 is 2204538611.

It is a super-2 number, since 2×11683540220² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57161 + ... + 163200.

It is an arithmetic number, because the mean of its divisors is an integer number (559939842).

Almost surely, 2^11683540220 is an apocalyptic number.

11683540220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11683540220 is an abundant number, since it is smaller than the sum of its proper divisors (15193572196).

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

11683540220 is a wasteful number, since it uses less digits than its factorization.

11683540220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220622 (or 220620 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 11683540220 in words is "eleven billion, six hundred eighty-three million, five hundred forty thousand, two hundred twenty".