213216689594 has 16 divisors (see below), whose sum is σ = 326142065088. Its totient is φ = 104523211392.

The previous prime is 213216689561. The next prime is 213216689597. The reversal of 213216689594 is 495986612312.

It is a super-2 number, since 2×213216689594² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213216689597) 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, 5115014 + ... + 5156529.

It is an arithmetic number, because the mean of its divisors is an integer number (20383879068).

Almost surely, 2^213216689594 is an apocalyptic number.

213216689594 is a deficient number, since it is larger than the sum of its proper divisors (112925375494).

213216689594 is a wasteful number, since it uses less digits than its factorization.

213216689594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10271749.

The product of its digits is 5598720, while the sum is 56.

The spelling of 213216689594 in words is "two hundred thirteen billion, two hundred sixteen million, six hundred eighty-nine thousand, five hundred ninety-four".