15551041233 has 32 divisors (see below), whose sum is σ = 25631200000. Its totient is φ = 8166894336.

The previous prime is 15551041189. The next prime is 15551041237. The reversal of 15551041233 is 33214015551.

It is not a de Polignac number, because 15551041233 - 2¹⁷ = 15550910161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15551041233.

It is not an unprimeable number, because it can be changed into a prime (15551041237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61858 + ... + 186891.

It is an arithmetic number, because the mean of its divisors is an integer number (800975000).

Almost surely, 2^15551041233 is an apocalyptic number.

15551041233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15551041233 is a deficient number, since it is larger than the sum of its proper divisors (10080158767).

15551041233 is a wasteful number, since it uses less digits than its factorization.

15551041233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249001.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 15551041233 its reverse (33214015551), we get a palindrome (48765056784).

The spelling of 15551041233 in words is "fifteen billion, five hundred fifty-one million, forty-one thousand, two hundred thirty-three".