15955809045 has 16 divisors (see below), whose sum is σ = 27850139712. Its totient is φ = 7736149760.

The previous prime is 15955809043. The next prime is 15955809091. The reversal of 15955809045 is 54090855951.

15955809045 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 15955809045 - 2¹ = 15955809043 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15955809043) 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, 48350772 + ... + 48351101.

It is an arithmetic number, because the mean of its divisors is an integer number (1740633732).

Almost surely, 2^15955809045 is an apocalyptic number.

15955809045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15955809045 is a deficient number, since it is larger than the sum of its proper divisors (11894330667).

15955809045 is a wasteful number, since it uses less digits than its factorization.

15955809045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96701892.

The product of its (nonzero) digits is 1620000, while the sum is 51.

The spelling of 15955809045 in words is "fifteen billion, nine hundred fifty-five million, eight hundred nine thousand, forty-five".