213562531021416 has 32 divisors (see below), whose sum is σ = 535436145132000. Its totient is φ = 70983534663360.

The previous prime is 213562531021381. The next prime is 213562531021421. The reversal of 213562531021416 is 614120135265312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12748471270 + ... + 12748488021.

It is an arithmetic number, because the mean of its divisors is an integer number (16732379535375).

Almost surely, 2^{213562531021416} is an apocalyptic number.

It is an amenable number.

213562531021416 is an abundant number, since it is smaller than the sum of its proper divisors (321873614110584).

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

213562531021416 is a wasteful number, since it uses less digits than its factorization.

213562531021416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25496959649 (or 25496959645 counting only the distinct ones).

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

Adding to 213562531021416 its reverse (614120135265312), we get a palindrome (827682666286728).

The spelling of 213562531021416 in words is "two hundred thirteen trillion, five hundred sixty-two billion, five hundred thirty-one million, twenty-one thousand, four hundred sixteen".