115667564633447 has 4 divisors (see below), whose sum is σ = 115667596660176. Its totient is φ = 115667532606720.

The previous prime is 115667564633351. The next prime is 115667564633459. The reversal of 115667564633447 is 744336465766511.

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 115667564633447 - 2⁴⁴ = 98075378589031 is a prime.

It is a super-2 number, since 2×115667564633447² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115667564633347) 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, 9789683 + ... + 18087924.

It is an arithmetic number, because the mean of its divisors is an integer number (28916899165044).

Almost surely, 2^{115667564633447} is an apocalyptic number.

115667564633447 is a deficient number, since it is larger than the sum of its proper divisors (32026729).

115667564633447 is an equidigital number, since it uses as much as digits as its factorization.

115667564633447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32026728.

The product of its digits is 914457600, while the sum is 68.

The spelling of 115667564633447 in words is "one hundred fifteen trillion, six hundred sixty-seven billion, five hundred sixty-four million, six hundred thirty-three thousand, four hundred forty-seven".