3221662704456 has 64 divisors (see below), whose sum is σ = 9355648164480. Its totient is φ = 905385300480.

The previous prime is 3221662704451. The next prime is 3221662704461. The reversal of 3221662704456 is 6544072661223.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3221662704451) and next prime (3221662704461).

It is a super-2 number, since 2×3221662704456² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3221662704451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157174701 + ... + 157195196.

It is an arithmetic number, because the mean of its divisors is an integer number (146182002570).

Almost surely, 2^{3221662704456} is an apocalyptic number.

It is an amenable number.

3221662704456 is an abundant number, since it is smaller than the sum of its proper divisors (6133985460024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3221662704456 is a wasteful number, since it uses less digits than its factorization.

3221662704456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314369974 (or 314369970 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 3221662704456 in words is "three trillion, two hundred twenty-one billion, six hundred sixty-two million, seven hundred four thousand, four hundred fifty-six".