3223661515072 has 56 divisors (see below), whose sum is σ = 6448802017280. Its totient is φ = 1598772349440.

The previous prime is 3223661515033. The next prime is 3223661515073. The reversal of 3223661515072 is 2705151663223.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223661515073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37272454 + ... + 37358842.

It is an arithmetic number, because the mean of its divisors is an integer number (115157178880).

Almost surely, 2^{3223661515072} is an apocalyptic number.

3223661515072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3223661515072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3224401008640).

3223661515072 is an abundant number, since it is smaller than the sum of its proper divisors (3225140502208).

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

3223661515072 is a wasteful number, since it uses less digits than its factorization.

3223661515072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91119 (or 91109 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 3223661515072 in words is "three trillion, two hundred twenty-three billion, six hundred sixty-one million, five hundred fifteen thousand, seventy-two".