11156621346 has 96 divisors (see below), whose sum is σ = 27105257088. Its totient is φ = 3418951680.

The previous prime is 11156621327. The next prime is 11156621351. The reversal of 11156621346 is 64312665111.

11156621346 is a `hidden beast` number, since 11 + 15 + 6 + 621 + 3 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11156621346.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1620291 + ... + 1627161.

It is an arithmetic number, because the mean of its divisors is an integer number (282346428).

Almost surely, 2^11156621346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11156621346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13552628544).

11156621346 is an abundant number, since it is smaller than the sum of its proper divisors (15948635742).

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

11156621346 is a wasteful number, since it uses less digits than its factorization.

11156621346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7158 (or 7146 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The spelling of 11156621346 in words is "eleven billion, one hundred fifty-six million, six hundred twenty-one thousand, three hundred forty-six".