215364163645103 has 4 divisors (see below), whose sum is σ = 234942723976488. Its totient is φ = 195785603313720.

The previous prime is 215364163645039. The next prime is 215364163645129. The reversal of 215364163645103 is 301546361463512.

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 215364163645103 - 2⁶ = 215364163645039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215364163645133) 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, 9789280165676 + ... + 9789280165697.

It is an arithmetic number, because the mean of its divisors is an integer number (58735680994122).

Almost surely, 2^{215364163645103} is an apocalyptic number.

215364163645103 is a deficient number, since it is larger than the sum of its proper divisors (19578560331385).

215364163645103 is a wasteful number, since it uses less digits than its factorization.

215364163645103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19578560331384.

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 215364163645103 in words is "two hundred fifteen trillion, three hundred sixty-four billion, one hundred sixty-three million, six hundred forty-five thousand, one hundred three".