15554561133 has 32 divisors (see below), whose sum is σ = 21827514240. Its totient is φ = 9839370240.

The previous prime is 15554561131. The next prime is 15554561137. The reversal of 15554561133 is 33116545551.

It is not a de Polignac number, because 15554561133 - 2¹ = 15554561131 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15554561091 and 15554561100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15554561131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1388073 + ... + 1399233.

It is an arithmetic number, because the mean of its divisors is an integer number (682109820).

Almost surely, 2^15554561133 is an apocalyptic number.

It is an amenable number.

15554561133 is a deficient number, since it is larger than the sum of its proper divisors (6272953107).

15554561133 is a wasteful number, since it uses less digits than its factorization.

15554561133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11469.

The product of its digits is 135000, while the sum is 39.

The spelling of 15554561133 in words is "fifteen billion, five hundred fifty-four million, five hundred sixty-one thousand, one hundred thirty-three".