2261643356536 has 8 divisors (see below), whose sum is σ = 4240581293520. Its totient is φ = 1130821678264.

The previous prime is 2261643356513. The next prime is 2261643356563. The reversal of 2261643356536 is 6356533461622.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141352709776 + ... + 141352709791.

It is an arithmetic number, because the mean of its divisors is an integer number (530072661690).

Almost surely, 2^{2261643356536} is an apocalyptic number.

It is an amenable number.

2261643356536 is a deficient number, since it is larger than the sum of its proper divisors (1978937936984).

2261643356536 is a wasteful number, since it uses less digits than its factorization.

2261643356536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282705419573 (or 282705419569 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 52.

The spelling of 2261643356536 in words is "two trillion, two hundred sixty-one billion, six hundred forty-three million, three hundred fifty-six thousand, five hundred thirty-six".