3225156694656 has 192 divisors, whose sum is σ = 9338786460000. Its totient is φ = 985692844032.

The previous prime is 3225156694607. The next prime is 3225156694717. The reversal of 3225156694656 is 6564966515223.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 3225156694656.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9502735 + ... + 9836273.

Almost surely, 2^{3225156694656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3225156694656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4669393230000).

3225156694656 is an abundant number, since it is smaller than the sum of its proper divisors (6113629765344).

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

3225156694656 is a wasteful number, since it uses less digits than its factorization.

3225156694656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333731 (or 333706 counting only the distinct ones).

The product of its digits is 69984000, while the sum is 60.

The spelling of 3225156694656 in words is "three trillion, two hundred twenty-five billion, one hundred fifty-six million, six hundred ninety-four thousand, six hundred fifty-six".