15655996 has 12 divisors (see below), whose sum is σ = 27486648. Its totient is φ = 7802672.

The previous prime is 15655993. The next prime is 15656033. The reversal of 15655996 is 69955651.

It is a happy number.

It is a super-3 number, since 3×15655996³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15655993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4906 + ... + 7441.

It is an arithmetic number, because the mean of its divisors is an integer number (2290554).

Almost surely, 2^15655996 is an apocalyptic number.

It is an amenable number.

15655996 is a deficient number, since it is larger than the sum of its proper divisors (11830652).

15655996 is a wasteful number, since it uses less digits than its factorization.

15655996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12668 (or 12666 counting only the distinct ones).

The product of its digits is 364500, while the sum is 46.

The square root of 15655996 is about 3956.7658510455. The cubic root of 15655996 is about 250.1652028081.

The spelling of 15655996 in words is "fifteen million, six hundred fifty-five thousand, nine hundred ninety-six".