11389227516 has 36 divisors (see below), whose sum is σ = 29718130624. Its totient is φ = 3673944000.

The previous prime is 11389227511. The next prime is 11389227593. The reversal of 11389227516 is 61572298311.

11389227516 is a `hidden beast` number, since 11 + 38 + 92 + 2 + 7 + 516 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×11389227516² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11389227511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5101585 + ... + 5103816.

Almost surely, 2^11389227516 is an apocalyptic number.

It is an amenable number.

11389227516 is an abundant number, since it is smaller than the sum of its proper divisors (18328903108).

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

11389227516 is a wasteful number, since it uses less digits than its factorization.

11389227516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10205442 (or 10205437 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The spelling of 11389227516 in words is "eleven billion, three hundred eighty-nine million, two hundred twenty-seven thousand, five hundred sixteen".