216725167152278 has 8 divisors (see below), whose sum is σ = 327964633478568. Its totient is φ = 107403622659424.

The previous prime is 216725167152163. The next prime is 216725167152313. The reversal of 216725167152278 is 872251761527612.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 216725167152278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479480458076 + ... + 479480458527.

It is an arithmetic number, because the mean of its divisors is an integer number (40995579184821).

Almost surely, 2^{216725167152278} is an apocalyptic number.

216725167152278 is a deficient number, since it is larger than the sum of its proper divisors (111239466326290).

216725167152278 is a wasteful number, since it uses less digits than its factorization.

216725167152278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958960916718.

The product of its digits is 39513600, while the sum is 62.

The spelling of 216725167152278 in words is "two hundred sixteen trillion, seven hundred twenty-five billion, one hundred sixty-seven million, one hundred fifty-two thousand, two hundred seventy-eight".