15140920666 has 8 divisors (see below), whose sum is σ = 23096319840. Its totient is φ = 7442147388.

The previous prime is 15140920651. The next prime is 15140920667. The reversal of 15140920666 is 66602904151.

It is a happy number.

15140920666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×15140920666² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15140920667) 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 3 ways as a sum of consecutive naturals, for example, 64156326 + ... + 64156561.

It is an arithmetic number, because the mean of its divisors is an integer number (2887039980).

Almost surely, 2^15140920666 is an apocalyptic number.

15140920666 is a deficient number, since it is larger than the sum of its proper divisors (7955399174).

15140920666 is a wasteful number, since it uses less digits than its factorization.

15140920666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128312948.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 15140920666 in words is "fifteen billion, one hundred forty million, nine hundred twenty thousand, six hundred sixty-six".