1332653243658 has 128 divisors (see below), whose sum is σ = 3163986614016. Its totient is φ = 369556992000.

The previous prime is 1332653243633. The next prime is 1332653243659. The reversal of 1332653243658 is 8563423562331.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1332653243658.

It is not an unprimeable number, because it can be changed into a prime (1332653243659) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66287808 + ... + 66307908.

It is an arithmetic number, because the mean of its divisors is an integer number (24718645422).

Almost surely, 2^{1332653243658} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1332653243658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581993307008).

1332653243658 is an abundant number, since it is smaller than the sum of its proper divisors (1831333370358).

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

1332653243658 is a wasteful number, since it uses less digits than its factorization.

1332653243658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21768.

The product of its digits is 9331200, while the sum is 51.

The spelling of 1332653243658 in words is "one trillion, three hundred thirty-two billion, six hundred fifty-three million, two hundred forty-three thousand, six hundred fifty-eight".