3320661216 has 48 divisors (see below), whose sum is σ = 8754858000. Its totient is φ = 1102046208.

The previous prime is 3320661203. The next prime is 3320661247. The reversal of 3320661216 is 6121660233.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×3320661216² = 22053581822893197312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53541 + ... + 97508.

It is an arithmetic number, because the mean of its divisors is an integer number (182392875).

Almost surely, 2^3320661216 is an apocalyptic number.

It is an amenable number.

3320661216 is an abundant number, since it is smaller than the sum of its proper divisors (5434196784).

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

3320661216 is a wasteful number, since it uses less digits than its factorization.

3320661216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151291 (or 151283 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 3320661216 is about 57625.1786634974. The cubic root of 3320661216 is about 1491.9062154296.

It can be divided in two parts, 33 and 20661216, that multiplied together give a triangular number (681820128 = T₃₆₉₂₇).

The spelling of 3320661216 in words is "three billion, three hundred twenty million, six hundred sixty-one thousand, two hundred sixteen".