1643313114620 has 24 divisors (see below), whose sum is σ = 3451347279744. Its totient is φ = 657251009856.

The previous prime is 1643313114617. The next prime is 1643313114629. The reversal of 1643313114620 is 264113133461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1643313114629) 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, 4458059 + ... + 4812578.

It is an arithmetic number, because the mean of its divisors is an integer number (143806136656).

Almost surely, 2^{1643313114620} is an apocalyptic number.

1643313114620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1643313114620 is an abundant number, since it is smaller than the sum of its proper divisors (1808034165124).

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

1643313114620 is a wasteful number, since it uses less digits than its factorization.

1643313114620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9279509 (or 9279507 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 1643313114620 in words is "one trillion, six hundred forty-three billion, three hundred thirteen million, one hundred fourteen thousand, six hundred twenty".