15072442006 has 4 divisors (see below), whose sum is σ = 22608663012. Its totient is φ = 7536221002.

The previous prime is 15072441983. The next prime is 15072442013. The reversal of 15072442006 is 60024427051.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) 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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3768110500 + ... + 3768110503.

It is an arithmetic number, because the mean of its divisors is an integer number (5652165753).

Almost surely, 2^15072442006 is an apocalyptic number.

15072442006 is a deficient number, since it is larger than the sum of its proper divisors (7536221006).

15072442006 is an equidigital number, since it uses as much as digits as its factorization.

15072442006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7536221005.

The product of its (nonzero) digits is 13440, while the sum is 31.

Adding to 15072442006 its reverse (60024427051), we get a palindrome (75096869057).

The spelling of 15072442006 in words is "fifteen billion, seventy-two million, four hundred forty-two thousand, six".