215682313568 has 12 divisors (see below), whose sum is σ = 424624554900. Its totient is φ = 107841156768.

The previous prime is 215682313559. The next prime is 215682313571. The reversal of 215682313568 is 865313286512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3370036118 + ... + 3370036181.

It is an arithmetic number, because the mean of its divisors is an integer number (35385379575).

Almost surely, 2^215682313568 is an apocalyptic number.

It is an amenable number.

215682313568 is a deficient number, since it is larger than the sum of its proper divisors (208942241332).

215682313568 is an equidigital number, since it uses as much as digits as its factorization.

215682313568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740072309 (or 6740072301 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

The spelling of 215682313568 in words is "two hundred fifteen billion, six hundred eighty-two million, three hundred thirteen thousand, five hundred sixty-eight".