11161510340 has 12 divisors (see below), whose sum is σ = 23439171756. Its totient is φ = 4464604128.

The previous prime is 11161510331. The next prime is 11161510379. The reversal of 11161510340 is 4301516111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1244537284 + 9916973056 = 35278^2 + 99584^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279037739 + ... + 279037778.

It is an arithmetic number, because the mean of its divisors is an integer number (1953264313).

Almost surely, 2^11161510340 is an apocalyptic number.

11161510340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11161510340 is an abundant number, since it is smaller than the sum of its proper divisors (12277661416).

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

11161510340 is a wasteful number, since it uses less digits than its factorization.

11161510340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558075526 (or 558075524 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The spelling of 11161510340 in words is "eleven billion, one hundred sixty-one million, five hundred ten thousand, three hundred forty".