213984545416 has 16 divisors (see below), whose sum is σ = 403776572940. Its totient is φ = 106310792640.

The previous prime is 213984545407. The next prime is 213984545419. The reversal of 213984545416 is 614545489312.

It can be written as a sum of positive squares in 2 ways, for example, as 165608302500 + 48376242916 = 406950^2 + 219946^2 .

It is a super-2 number, since 2×213984545416² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213984545419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85183675 + ... + 85186186.

Almost surely, 2^213984545416 is an apocalyptic number.

It is an amenable number.

213984545416 is a deficient number, since it is larger than the sum of its proper divisors (189792027524).

213984545416 is a wasteful number, since it uses less digits than its factorization.

213984545416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170370024 (or 170370020 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 52.

The spelling of 213984545416 in words is "two hundred thirteen billion, nine hundred eighty-four million, five hundred forty-five thousand, four hundred sixteen".