216104464 has 10 divisors (see below), whose sum is σ = 418702430. Its totient is φ = 108052224.

The previous prime is 216104437. The next prime is 216104501. The reversal of 216104464 is 464401612.

It can be written as a sum of positive squares in only one way, i.e., 204490000 + 11614464 = 14300^2 + 3408^2 .

It is a super-2 number, since 2×216104464² = 93402278721454592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6753249 + ... + 6753280.

It is an arithmetic number, because the mean of its divisors is an integer number (41870243).

Almost surely, 2^216104464 is an apocalyptic number.

It is an amenable number.

216104464 is a deficient number, since it is larger than the sum of its proper divisors (202597966).

216104464 is a wasteful number, since it uses less digits than its factorization.

216104464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13506537 (or 13506531 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 216104464 is about 14700.4919645568. The cubic root of 216104464 is about 600.0967103369.

The spelling of 216104464 in words is "two hundred sixteen million, one hundred four thousand, four hundred sixty-four".