15944945145 has 8 divisors (see below), whose sum is σ = 25511912256. Its totient is φ = 8503970736.

The previous prime is 15944945119. The next prime is 15944945161. The reversal of 15944945145 is 54154944951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15944945145 - 2¹⁴ = 15944928761 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531498157 + ... + 531498186.

It is an arithmetic number, because the mean of its divisors is an integer number (3188989032).

Almost surely, 2^15944945145 is an apocalyptic number.

15944945145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15944945145 is a deficient number, since it is larger than the sum of its proper divisors (9566967111).

15944945145 is a wasteful number, since it uses less digits than its factorization.

15944945145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062996351.

The product of its digits is 2592000, while the sum is 51.

The spelling of 15944945145 in words is "fifteen billion, nine hundred forty-four million, nine hundred forty-five thousand, one hundred forty-five".