43300053868661 has 4 divisors (see below), whose sum is σ = 43300068476352. Its totient is φ = 43300039260972.

The previous prime is 43300053868639. The next prime is 43300053868699. The reversal of 43300053868661 is 16686835000334.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43300053868661 - 2⁶ = 43300053868597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43300053868061) 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, 1102415 + ... + 9370988.

It is an arithmetic number, because the mean of its divisors is an integer number (10825017119088).

Almost surely, 2^{43300053868661} is an apocalyptic number.

It is an amenable number.

43300053868661 is a deficient number, since it is larger than the sum of its proper divisors (14607691).

43300053868661 is a wasteful number, since it uses less digits than its factorization.

43300053868661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14607690.

The product of its (nonzero) digits is 7464960, while the sum is 53.

Adding to 43300053868661 its reverse (16686835000334), we get a palindrome (59986888868995).

The spelling of 43300053868661 in words is "forty-three trillion, three hundred billion, fifty-three million, eight hundred sixty-eight thousand, six hundred sixty-one".