216293623357 has 16 divisors (see below), whose sum is σ = 249358188672. Its totient is φ = 183777269760.

The previous prime is 216293623349. The next prime is 216293623397. The reversal of 216293623357 is 753326392612.

216293623357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216293623357 - 2³ = 216293623349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216293623357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216293623397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94758 + ... + 664504.

It is an arithmetic number, because the mean of its divisors is an integer number (15584886792).

Almost surely, 2^216293623357 is an apocalyptic number.

It is an amenable number.

216293623357 is a deficient number, since it is larger than the sum of its proper divisors (33064565315).

216293623357 is a wasteful number, since it uses less digits than its factorization.

216293623357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570228.

The product of its digits is 2449440, while the sum is 49.

The spelling of 216293623357 in words is "two hundred sixteen billion, two hundred ninety-three million, six hundred twenty-three thousand, three hundred fifty-seven".