1636145113405 has 8 divisors (see below), whose sum is σ = 2141862693984. Its totient is φ = 1189923718800.

The previous prime is 1636145113391. The next prime is 1636145113517. The reversal of 1636145113405 is 5043115416361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1636145113405 - 2⁷ = 1636145113277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14874046431 + ... + 14874046540.

It is an arithmetic number, because the mean of its divisors is an integer number (267732836748).

Almost surely, 2^{1636145113405} is an apocalyptic number.

It is an amenable number.

1636145113405 is a deficient number, since it is larger than the sum of its proper divisors (505717580579).

1636145113405 is a wasteful number, since it uses less digits than its factorization.

1636145113405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29748092987.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 1636145113405 in words is "one trillion, six hundred thirty-six billion, one hundred forty-five million, one hundred thirteen thousand, four hundred five".