16216546215 has 16 divisors (see below), whose sum is σ = 25988541408. Its totient is φ = 8634802176.

The previous prime is 16216546187. The next prime is 16216546219. The reversal of 16216546215 is 51264561261.

It is not a de Polignac number, because 16216546215 - 2²³ = 16208157607 is a prime.

It is a super-2 number, since 2×16216546215² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16216546219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 866842 + ... + 885351.

It is an arithmetic number, because the mean of its divisors is an integer number (1624283838).

Almost surely, 2^16216546215 is an apocalyptic number.

16216546215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16216546215 is a deficient number, since it is larger than the sum of its proper divisors (9771995193).

16216546215 is a wasteful number, since it uses less digits than its factorization.

16216546215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752818.

The product of its digits is 86400, while the sum is 39.

The spelling of 16216546215 in words is "sixteen billion, two hundred sixteen million, five hundred forty-six thousand, two hundred fifteen".