15581430966 has 32 divisors (see below), whose sum is σ = 32897088000. Its totient is φ = 4906340640.

The previous prime is 15581430961. The next prime is 15581431003. The reversal of 15581430966 is 66903418551.

15581430966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15581430961) 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, 156030 + ... + 235601.

It is an arithmetic number, because the mean of its divisors is an integer number (1028034000).

Almost surely, 2^15581430966 is an apocalyptic number.

15581430966 is an abundant number, since it is smaller than the sum of its proper divisors (17315657034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15581430966 is a wasteful number, since it uses less digits than its factorization.

15581430966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392004.

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 15581430966 in words is "fifteen billion, five hundred eighty-one million, four hundred thirty thousand, nine hundred sixty-six".