216215323512612 has 24 divisors (see below), whose sum is σ = 504561628718112. Its totient is φ = 72063316334400.

The previous prime is 216215323512523. The next prime is 216215323512613.

216215323512612 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×216215323512612² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216215323512613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057164714 + ... + 1057369217.

It is an arithmetic number, because the mean of its divisors is an integer number (21023401196588).

Almost surely, 2^{216215323512612} is an apocalyptic number.

It is an amenable number.

216215323512612 is an abundant number, since it is smaller than the sum of its proper divisors (288346305205500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216215323512612 is a wasteful number, since it uses less digits than its factorization.

216215323512612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114542459 (or 2114542457 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The spelling of 216215323512612 in words is "two hundred sixteen trillion, two hundred fifteen billion, three hundred twenty-three million, five hundred twelve thousand, six hundred twelve".