853405664 has 12 divisors (see below), whose sum is σ = 1680142464. Its totient is φ = 426702816.

The previous prime is 853405621. The next prime is 853405667. The reversal of 853405664 is 466504358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853405667) by changing a digit.

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 as a sum of consecutive naturals, namely, 13334432 + ... + 13334495.

It is an arithmetic number, because the mean of its divisors is an integer number (140011872).

Almost surely, 2^853405664 is an apocalyptic number.

It is an amenable number.

853405664 is a deficient number, since it is larger than the sum of its proper divisors (826736800).

853405664 is a wasteful number, since it uses less digits than its factorization.

853405664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26668937 (or 26668929 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 853405664 is about 29213.1077429294. The cubic root of 853405664 is about 948.5316796552.

The spelling of 853405664 in words is "eight hundred fifty-three million, four hundred five thousand, six hundred sixty-four".