11642558548 has 12 divisors (see below), whose sum is σ = 20758901940. Its totient is φ = 5711443712.

The previous prime is 11642558537. The next prime is 11642558549. The reversal of 11642558548 is 84585524611.

It can be written as a sum of positive squares in 2 ways, for example, as 5116827024 + 6525731524 = 71532^2 + 80782^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11642558549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27458653 + ... + 27459076.

It is an arithmetic number, because the mean of its divisors is an integer number (1729908495).

Almost surely, 2^11642558548 is an apocalyptic number.

It is an amenable number.

11642558548 is a deficient number, since it is larger than the sum of its proper divisors (9116343392).

11642558548 is a wasteful number, since it uses less digits than its factorization.

11642558548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54917786 (or 54917784 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 49.

The spelling of 11642558548 in words is "eleven billion, six hundred forty-two million, five hundred fifty-eight thousand, five hundred forty-eight".