3522171301640 has 128 divisors (see below), whose sum is σ = 8474369679360. Its totient is φ = 1314609018624.

The previous prime is 3522171301553. The next prime is 3522171301673. The reversal of 3522171301640 is 461031712253.

It is a self number, because there is not a number n which added to its sum of digits gives 3522171301640.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6071537 + ... + 6626303.

It is an arithmetic number, because the mean of its divisors is an integer number (66206013120).

Almost surely, 2^{3522171301640} 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 3522171301640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4237184839680).

3522171301640 is an abundant number, since it is smaller than the sum of its proper divisors (4952198377720).

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

3522171301640 is a wasteful number, since it uses less digits than its factorization.

3522171301640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554971 (or 554967 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 3522171301640 in words is "three trillion, five hundred twenty-two billion, one hundred seventy-one million, three hundred one thousand, six hundred forty".