15664756106 has 8 divisors (see below), whose sum is σ = 23499144900. Its totient is φ = 7831707808.

The previous prime is 15664756099. The next prime is 15664756109. The reversal of 15664756106 is 60165746651.

15664756106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15663774025 + 982081 = 125155^2 + 991^2 .

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

It is a super-3 number, since 3×15664756106³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (15664756109) 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, 305381 + ... + 352968.

Almost surely, 2^15664756106 is an apocalyptic number.

15664756106 is a deficient number, since it is larger than the sum of its proper divisors (7834388794).

15664756106 is a wasteful number, since it uses less digits than its factorization.

15664756106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670248.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 15664756106 in words is "fifteen billion, six hundred sixty-four million, seven hundred fifty-six thousand, one hundred six".