1653341557122 has 80 divisors (see below), whose sum is σ = 3799096342272. Its totient is φ = 537128534880.

The previous prime is 1653341557117. The next prime is 1653341557123. The reversal of 1653341557122 is 2217551433561.

1653341557122 is a `hidden beast` number, since 1 + 6 + 5 + 33 + 41 + 5 + 571 + 2 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (1653341557123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2953903 + ... + 3468749.

Almost surely, 2^{1653341557122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1653341557122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1899548171136).

1653341557122 is an abundant number, since it is smaller than the sum of its proper divisors (2145754785150).

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

1653341557122 is a wasteful number, since it uses less digits than its factorization.

1653341557122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515365 (or 515356 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The spelling of 1653341557122 in words is "one trillion, six hundred fifty-three billion, three hundred forty-one million, five hundred fifty-seven thousand, one hundred twenty-two".