3365661220 has 24 divisors (see below), whose sum is σ = 7110218304. Its totient is φ = 1338201696.

The previous prime is 3365661199. The next prime is 3365661223. The reversal of 3365661220 is 221665633.

It is a super-2 number, since 2×3365661220² = 22655350895623776800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3365661223) 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, 500502 + ... + 507181.

It is an arithmetic number, because the mean of its divisors is an integer number (296259096).

Almost surely, 2^3365661220 is an apocalyptic number.

It is an amenable number.

3365661220 is an abundant number, since it is smaller than the sum of its proper divisors (3744557084).

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

3365661220 is a wasteful number, since it uses less digits than its factorization.

3365661220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007859 (or 1007857 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 3365661220 is about 58014.3190945132. The cubic root of 3365661220 is about 1498.6151989812.

The spelling of 3365661220 in words is "three billion, three hundred sixty-five million, six hundred sixty-one thousand, two hundred twenty".