11133506440 has 64 divisors (see below), whose sum is σ = 28789084800. Its totient is φ = 3795859968.

The previous prime is 11133506413. The next prime is 11133506467. The reversal of 11133506440 is 4460533111.

It is an interprime number because it is at equal distance from previous prime (11133506413) and next prime (11133506467).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 11133506399 and 11133506408.

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, 60949 + ... + 161188.

It is an arithmetic number, because the mean of its divisors is an integer number (449829450).

Almost surely, 2^11133506440 is an apocalyptic number.

11133506440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11133506440 is an abundant number, since it is smaller than the sum of its proper divisors (17655578360).

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

11133506440 is a wasteful number, since it uses less digits than its factorization.

11133506440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222334 (or 222330 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 11133506440 in words is "eleven billion, one hundred thirty-three million, five hundred six thousand, four hundred forty".