209190024664 has 16 divisors (see below), whose sum is σ = 392427540000. Its totient is φ = 104542680672.

The previous prime is 209190024647. The next prime is 209190024689. The reversal of 209190024664 is 466420091902.

209190024664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 209190024664.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6524467 + ... + 6556450.

It is an arithmetic number, because the mean of its divisors is an integer number (24526721250).

Almost surely, 2^209190024664 is an apocalyptic number.

It is an amenable number.

209190024664 is a deficient number, since it is larger than the sum of its proper divisors (183237515336).

209190024664 is a wasteful number, since it uses less digits than its factorization.

209190024664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13082922 (or 13082918 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 209190024664 in words is "two hundred nine billion, one hundred ninety million, twenty-four thousand, six hundred sixty-four".