11616554 has 4 divisors (see below), whose sum is σ = 17424834. Its totient is φ = 5808276.

The previous prime is 11616551. The next prime is 11616589. The reversal of 11616554 is 45561611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45561611 = 229 ⋅198959.

It can be written as a sum of positive squares in only one way, i.e., 10465225 + 1151329 = 3235^2 + 1073^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11616551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2904137 + ... + 2904140.

Almost surely, 2^11616554 is an apocalyptic number.

11616554 is a deficient number, since it is larger than the sum of its proper divisors (5808280).

11616554 is an equidigital number, since it uses as much as digits as its factorization.

11616554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808279.

The product of its digits is 3600, while the sum is 29.

The square root of 11616554 is about 3408.3066176622. The cubic root of 11616554 is about 226.4778699910.

The spelling of 11616554 in words is "eleven million, six hundred sixteen thousand, five hundred fifty-four".