97647655563 has 48 divisors (see below), whose sum is σ = 154548456192. Its totient is φ = 59143680000.

The previous prime is 97647655507. The next prime is 97647655577. The reversal of 97647655563 is 36555674679.

97647655563 is a `hidden beast` number, since 9 + 7 + 6 + 4 + 7 + 65 + 5 + 563 = 666.

It is not a de Polignac number, because 97647655563 - 2⁸ = 97647655307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97647655563.

It is not an unprimeable number, because it can be changed into a prime (97647655583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1876273 + ... + 1927613.

It is an arithmetic number, because the mean of its divisors is an integer number (3219759504).

Almost surely, 2^97647655563 is an apocalyptic number.

97647655563 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

97647655563 is a deficient number, since it is larger than the sum of its proper divisors (56900800629).

97647655563 is a wasteful number, since it uses less digits than its factorization.

97647655563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51796 (or 51793 counting only the distinct ones).

The product of its digits is 142884000, while the sum is 63.

The spelling of 97647655563 in words is "ninety-seven billion, six hundred forty-seven million, six hundred fifty-five thousand, five hundred sixty-three".