3944165208225 has 96 divisors (see below), whose sum is σ = 7143382794240. Its totient is φ = 1904392224000.

The previous prime is 3944165208211. The next prime is 3944165208229. The reversal of 3944165208225 is 5228025614493.

3944165208225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3944165208225 - 2⁶ = 3944165208161 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3944165208229) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 311268640 + ... + 311281310.

It is an arithmetic number, because the mean of its divisors is an integer number (74410237440).

Almost surely, 2^{3944165208225} is an apocalyptic number.

It is an amenable number.

3944165208225 is a deficient number, since it is larger than the sum of its proper divisors (3199217586015).

3944165208225 is a wasteful number, since it uses less digits than its factorization.

3944165208225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14231 (or 14226 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 3944165208225 in words is "three trillion, nine hundred forty-four billion, one hundred sixty-five million, two hundred eight thousand, two hundred twenty-five".