36643434663 has 48 divisors (see below), whose sum is σ = 55238198400. Its totient is φ = 21575252160.

The previous prime is 36643434643. The next prime is 36643434683.

36643434663 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (36643434643) and next prime (36643434683).

It is not a de Polignac number, because 36643434663 - 2⁸ = 36643434407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36643434643) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11105788 + ... + 11109086.

It is an arithmetic number, because the mean of its divisors is an integer number (1150795800).

Almost surely, 2^36643434663 is an apocalyptic number.

36643434663 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

36643434663 is a deficient number, since it is larger than the sum of its proper divisors (18594763737).

36643434663 is a wasteful number, since it uses less digits than its factorization.

36643434663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188 (or 4177 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 48.

The spelling of 36643434663 in words is "thirty-six billion, six hundred forty-three million, four hundred thirty-four thousand, six hundred sixty-three".