15668061 has 8 divisors (see below), whose sum is σ = 21335424. Its totient is φ = 10223040.

The previous prime is 15668047. The next prime is 15668077. The reversal of 15668061 is 16086651.

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

It is not a de Polignac number, because 15668061 - 2⁶ = 15667997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15668021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55420 + ... + 55701.

It is an arithmetic number, because the mean of its divisors is an integer number (2666928).

Almost surely, 2^15668061 is an apocalyptic number.

It is an amenable number.

15668061 is a deficient number, since it is larger than the sum of its proper divisors (5667363).

15668061 is a wasteful number, since it uses less digits than its factorization.

15668061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111171.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 15668061 is about 3958.2901611681. The cubic root of 15668061 is about 250.2294480167.

The spelling of 15668061 in words is "fifteen million, six hundred sixty-eight thousand, sixty-one".