3318556647985 has 8 divisors (see below), whose sum is σ = 4066997083776. Its totient is φ = 2598359247600.

The previous prime is 3318556647953. The next prime is 3318556647997. The reversal of 3318556647985 is 5897466558133.

It is a happy number.

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

It is not a de Polignac number, because 3318556647985 - 2⁵ = 3318556647953 is a prime.

It is a super-2 number, since 2×3318556647985² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7060758591 + ... + 7060759060.

It is an arithmetic number, because the mean of its divisors is an integer number (508374635472).

Almost surely, 2^{3318556647985} is an apocalyptic number.

It is an amenable number.

3318556647985 is a deficient number, since it is larger than the sum of its proper divisors (748440435791).

3318556647985 is a wasteful number, since it uses less digits than its factorization.

3318556647985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14121517703.

The product of its digits is 653184000, while the sum is 70.

The spelling of 3318556647985 in words is "three trillion, three hundred eighteen billion, five hundred fifty-six million, six hundred forty-seven thousand, nine hundred eighty-five".