15040242666 has 48 divisors (see below), whose sum is σ = 32829788160. Its totient is φ = 4976209440.

The previous prime is 15040242649. The next prime is 15040242671. The reversal of 15040242666 is 66624204051.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15040242666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1642236 + ... + 1651368.

It is an arithmetic number, because the mean of its divisors is an integer number (683953920).

Almost surely, 2^15040242666 is an apocalyptic number.

15040242666 is an abundant number, since it is smaller than the sum of its proper divisors (17789545494).

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

15040242666 is a wasteful number, since it uses less digits than its factorization.

15040242666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9811 (or 9808 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 15040242666 in words is "fifteen billion, forty million, two hundred forty-two thousand, six hundred sixty-six".