1320501554653 has 8 divisors (see below), whose sum is σ = 1321589433600. Its totient is φ = 1319413915008.

The previous prime is 1320501554639. The next prime is 1320501554681. The reversal of 1320501554653 is 3564551050231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320501554653 - 2⁵ = 1320501554621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320501552653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11965038 + ... + 12074896.

It is an arithmetic number, because the mean of its divisors is an integer number (165198679200).

Almost surely, 2^{1320501554653} is an apocalyptic number.

It is an amenable number.

1320501554653 is a deficient number, since it is larger than the sum of its proper divisors (1087878947).

1320501554653 is a wasteful number, since it uses less digits than its factorization.

1320501554653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119651.

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 1320501554653 in words is "one trillion, three hundred twenty billion, five hundred one million, five hundred fifty-four thousand, six hundred fifty-three".