15106660406009 has 16 divisors (see below), whose sum is σ = 15272871129360. Its totient is φ = 14940783513600.

The previous prime is 15106660406003. The next prime is 15106660406021. The reversal of 15106660406009 is 90060406660151.

It can be written as a sum of positive squares in 8 ways, for example, as 3229352761600 + 11877307644409 = 1797040^2 + 3446347^2 .

It is a cyclic number.

It is not a de Polignac number, because 15106660406009 - 2¹² = 15106660401913 is a prime.

It is a super-2 number, since 2×15106660406009² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15106660406003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457858217 + ... + 457891209.

It is an arithmetic number, because the mean of its divisors is an integer number (954554445585).

Almost surely, 2^{15106660406009} is an apocalyptic number.

It is an amenable number.

15106660406009 is a deficient number, since it is larger than the sum of its proper divisors (166210723351).

15106660406009 is a wasteful number, since it uses less digits than its factorization.

15106660406009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37900.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 15106660406009 in words is "fifteen trillion, one hundred six billion, six hundred sixty million, four hundred six thousand, nine".