216157514605 has 16 divisors (see below), whose sum is σ = 273065065920. Its totient is φ = 163810245888.

The previous prime is 216157514597. The next prime is 216157514611. The reversal of 216157514605 is 506415751612.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 216157514605 - 2³ = 216157514597 is a prime.

It is a super-2 number, since 2×216157514605² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056814 + ... + 1244656.

It is an arithmetic number, because the mean of its divisors is an integer number (17066566620).

Almost surely, 2^216157514605 is an apocalyptic number.

It is an amenable number.

216157514605 is a deficient number, since it is larger than the sum of its proper divisors (56907551315).

216157514605 is a wasteful number, since it uses less digits than its factorization.

216157514605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199980.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 216157514605 in words is "two hundred sixteen billion, one hundred fifty-seven million, five hundred fourteen thousand, six hundred five".