216354121453612 has 12 divisors (see below), whose sum is σ = 378619955424760. Its totient is φ = 108176991332256.

The previous prime is 216354121453597. The next prime is 216354121453621.

It is a happy number.

216354121453612 is nontrivially palindromic in base 10.

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, 9986598 + ... + 23074669.

Almost surely, 2^{216354121453612} is an apocalyptic number.

It is an amenable number.

216354121453612 is a deficient number, since it is larger than the sum of its proper divisors (162265833971148).

216354121453612 is a wasteful number, since it uses less digits than its factorization.

216354121453612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34697280 (or 34697278 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 46.

The spelling of 216354121453612 in words is "two hundred sixteen trillion, three hundred fifty-four billion, one hundred twenty-one million, four hundred fifty-three thousand, six hundred twelve".