3356465621 has 4 divisors (see below), whose sum is σ = 3357293772. Its totient is φ = 3355637472.

The previous prime is 3356465617. The next prime is 3356465641. The reversal of 3356465621 is 1265646533.

3356465621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1265646533 = 311 ⋅4069603.

It can be written as a sum of positive squares in 2 ways, for example, as 1771231396 + 1585234225 = 42086^2 + 39815^2 .

It is a cyclic number.

It is not a de Polignac number, because 3356465621 - 2² = 3356465617 is a prime.

It is a super-2 number, since 2×3356465621² = 22531722929909831282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3356465611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407966 + ... + 416111.

It is an arithmetic number, because the mean of its divisors is an integer number (839323443).

Almost surely, 2^3356465621 is an apocalyptic number.

It is an amenable number.

3356465621 is a deficient number, since it is larger than the sum of its proper divisors (828151).

3356465621 is an equidigital number, since it uses as much as digits as its factorization.

3356465621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828150.

The product of its digits is 388800, while the sum is 41.

The square root of 3356465621 is about 57935.0120479836. The cubic root of 3356465621 is about 1497.2491242799.

The spelling of 3356465621 in words is "three billion, three hundred fifty-six million, four hundred sixty-five thousand, six hundred twenty-one".