1636145634603 has 32 divisors (see below), whose sum is σ = 2477299852800. Its totient is φ = 954219142656.

The previous prime is 1636145634589. The next prime is 1636145634631. The reversal of 1636145634603 is 3064365416361.

It is a happy number.

It is not a de Polignac number, because 1636145634603 - 2⁴ = 1636145634587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1636145634653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15877783 + ... + 15980496.

It is an arithmetic number, because the mean of its divisors is an integer number (77415620400).

Almost surely, 2^{1636145634603} is an apocalyptic number.

1636145634603 is a deficient number, since it is larger than the sum of its proper divisors (841154218197).

1636145634603 is a wasteful number, since it uses less digits than its factorization.

1636145634603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31858371.

The product of its (nonzero) digits is 2799360, while the sum is 48.

The spelling of 1636145634603 in words is "one trillion, six hundred thirty-six billion, one hundred forty-five million, six hundred thirty-four thousand, six hundred three".