216712622626 has 4 divisors (see below), whose sum is σ = 325068933942. Its totient is φ = 108356311312.

The previous prime is 216712622603. The next prime is 216712622663. The reversal of 216712622626 is 626226217612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 123717510225 + 92995112401 = 351735^2 + 304951^2 .

It is a super-3 number, since 3×216712622626³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54178155655 + ... + 54178155658.

Almost surely, 2^216712622626 is an apocalyptic number.

216712622626 is a deficient number, since it is larger than the sum of its proper divisors (108356311316).

216712622626 is a wasteful number, since it uses less digits than its factorization.

216712622626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108356311315.

The product of its digits is 290304, while the sum is 43.

The spelling of 216712622626 in words is "two hundred sixteen billion, seven hundred twelve million, six hundred twenty-two thousand, six hundred twenty-six".