15015000006 has 12 divisors (see below), whose sum is σ = 32532500052. Its totient is φ = 5004999996.

The previous prime is 15014999977. The next prime is 15015000031. The reversal of 15015000006 is 60000051051.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 834166667 = 15015000006 / (1 + 5 + 0 + 1 + 5 + 0 + 0 + 0 + 0 + 0 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 417083316 + ... + 417083351.

It is an arithmetic number, because the mean of its divisors is an integer number (2711041671).

Almost surely, 2^15015000006 is an apocalyptic number.

15015000006 is an abundant number, since it is smaller than the sum of its proper divisors (17517500046).

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

15015000006 is a wasteful number, since it uses less digits than its factorization.

15015000006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834166675 (or 834166672 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

Adding to 15015000006 its reverse (60000051051), we get a palindrome (75015051057).

The spelling of 15015000006 in words is "fifteen billion, fifteen million, six", and thus it is an aban number and an uban number.