11540650554 has 64 divisors (see below), whose sum is σ = 26037089280. Its totient is φ = 3788331120.

The previous prime is 11540650547. The next prime is 11540650609. The reversal of 11540650554 is 45505604511.

11540650554 is a `hidden beast` number, since 1 + 1 + 5 + 40 + 65 + 0 + 554 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6605109 + ... + 6606855.

It is an arithmetic number, because the mean of its divisors is an integer number (406829520).

Almost surely, 2^11540650554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11540650554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13018544640).

11540650554 is an abundant number, since it is smaller than the sum of its proper divisors (14496438726).

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

11540650554 is a wasteful number, since it uses less digits than its factorization.

11540650554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552 (or 3546 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 11540650554 in words is "eleven billion, five hundred forty million, six hundred fifty thousand, five hundred fifty-four".