3396455681 has 2 divisors, whose sum is σ = 3396455682. Its totient is φ = 3396455680.

The previous prime is 3396455677. The next prime is 3396455693. The reversal of 3396455681 is 1865546933.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3359245681 + 37210000 = 57959^2 + 6100^2 .

It is an emirp because it is prime and its reverse (1865546933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3396455681 - 2² = 3396455677 is a prime.

It is a super-3 number, since 3×3396455681³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (3396455981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1698227840 + 1698227841.

It is an arithmetic number, because the mean of its divisors is an integer number (1698227841).

Almost surely, 2^3396455681 is an apocalyptic number.

It is an amenable number.

3396455681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3396455681 is an equidigital number, since it uses as much as digits as its factorization.

3396455681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 50.

The square root of 3396455681 is about 58279.1187390475. The cubic root of 3396455681 is about 1503.1719073488.

The spelling of 3396455681 in words is "three billion, three hundred ninety-six million, four hundred fifty-five thousand, six hundred eighty-one".