3365446721 has 8 divisors (see below), whose sum is σ = 4142088384. Its totient is φ = 2662770960.

The previous prime is 3365446717. The next prime is 3365446727. The reversal of 3365446721 is 1276445633.

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

It is a cyclic number.

It is not a de Polignac number, because 3365446721 - 2² = 3365446717 is a prime.

It is a super-2 number, since 2×3365446721² = 22652463263779303682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3365446727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18491375 + ... + 18491556.

It is an arithmetic number, because the mean of its divisors is an integer number (517761048).

Almost surely, 2^3365446721 is an apocalyptic number.

It is an amenable number.

3365446721 is a deficient number, since it is larger than the sum of its proper divisors (776641663).

3365446721 is a wasteful number, since it uses less digits than its factorization.

3365446721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36982951.

The product of its digits is 362880, while the sum is 41.

The square root of 3365446721 is about 58012.4703921493. The cubic root of 3365446721 is about 1498.5833619196.

The spelling of 3365446721 in words is "three billion, three hundred sixty-five million, four hundred forty-six thousand, seven hundred twenty-one".