2643552645016 has 16 divisors (see below), whose sum is σ = 4956821366400. Its totient is φ = 1321733613984.

The previous prime is 2643552644969. The next prime is 2643552645017. The reversal of 2643552645016 is 6105462553462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643552645017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5074735 + ... + 5571358.

It is an arithmetic number, because the mean of its divisors is an integer number (309801335400).

Almost surely, 2^{2643552645016} is an apocalyptic number.

It is an amenable number.

2643552645016 is a deficient number, since it is larger than the sum of its proper divisors (2313268721384).

2643552645016 is a wasteful number, since it uses less digits than its factorization.

2643552645016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10677138 (or 10677134 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 2643552645016 in words is "two trillion, six hundred forty-three billion, five hundred fifty-two million, six hundred forty-five thousand, sixteen".