11621000553 has 16 divisors (see below), whose sum is σ = 16077432000. Its totient is φ = 7457567040.

The previous prime is 11621000551. The next prime is 11621000579. The reversal of 11621000553 is 35500012611.

11621000553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11621000553 - 2¹ = 11621000551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11621000551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172978 + ... + 230571.

It is an arithmetic number, because the mean of its divisors is an integer number (1004839500).

Almost surely, 2^11621000553 is an apocalyptic number.

It is an amenable number.

11621000553 is a deficient number, since it is larger than the sum of its proper divisors (4456431447).

11621000553 is a wasteful number, since it uses less digits than its factorization.

11621000553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403912.

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 11621000553 in words is "eleven billion, six hundred twenty-one million, five hundred fifty-three", and thus it is an aban number.