3356615921 has 8 divisors (see below), whose sum is σ = 3472533288. Its totient is φ = 3242320000.

The previous prime is 3356615917. The next prime is 3356615957. The reversal of 3356615921 is 1295166533.

It can be written as a sum of positive squares in 4 ways, for example, as 290225296 + 3066390625 = 17036^2 + 55375^2 .

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 3356615921 - 2² = 3356615917 is a prime.

It is a super-2 number, since 2×3356615921² = 22533740882221356482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3356215921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401150 + ... + 409431.

It is an arithmetic number, because the mean of its divisors is an integer number (434066661).

Almost surely, 2^3356615921 is an apocalyptic number.

It is an amenable number.

3356615921 is a deficient number, since it is larger than the sum of its proper divisors (115917367).

3356615921 is a wasteful number, since it uses less digits than its factorization.

3356615921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810723.

The product of its digits is 145800, while the sum is 41.

The square root of 3356615921 is about 57936.3091765432. The cubic root of 3356615921 is about 1497.2714725086.

The spelling of 3356615921 in words is "three billion, three hundred fifty-six million, six hundred fifteen thousand, nine hundred twenty-one".