215601368 has 16 divisors (see below), whose sum is σ = 415178880. Its totient is φ = 104887008.

The previous prime is 215601319. The next prime is 215601409. The reversal of 215601368 is 863106512.

It is a happy number.

215601368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363896 + ... + 364487.

It is an arithmetic number, because the mean of its divisors is an integer number (25948680).

Almost surely, 2^215601368 is an apocalyptic number.

It is an amenable number.

215601368 is a deficient number, since it is larger than the sum of its proper divisors (199577512).

215601368 is a wasteful number, since it uses less digits than its factorization.

215601368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728426 (or 728422 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 215601368 is about 14683.3704577662. The cubic root of 215601368 is about 599.6306690006.

The spelling of 215601368 in words is "two hundred fifteen million, six hundred one thousand, three hundred sixty-eight".