72204598566663 has 4 divisors (see below), whose sum is σ = 96272798088888. Its totient is φ = 48136399044440.

The previous prime is 72204598566571. The next prime is 72204598566689. The reversal of 72204598566663 is 36666589540227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72204598566663 - 2¹⁷ = 72204598435591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72204598565663) 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, 12034099761108 + ... + 12034099761113.

It is an arithmetic number, because the mean of its divisors is an integer number (24068199522222).

Almost surely, 2^{72204598566663} is an apocalyptic number.

72204598566663 is a deficient number, since it is larger than the sum of its proper divisors (24068199522225).

72204598566663 is a wasteful number, since it uses less digits than its factorization.

72204598566663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24068199522224.

The product of its (nonzero) digits is 783820800, while the sum is 69.

The spelling of 72204598566663 in words is "seventy-two trillion, two hundred four billion, five hundred ninety-eight million, five hundred sixty-six thousand, six hundred sixty-three".