196515664 has 40 divisors (see below), whose sum is σ = 386571240. Its totient is φ = 96768000.

The previous prime is 196515661. The next prime is 196515667. The reversal of 196515664 is 466515691.

It is an interprime number because it is at equal distance from previous prime (196515661) and next prime (196515667).

It can be written as a sum of positive squares in 4 ways, for example, as 125619264 + 70896400 = 11208^2 + 8420^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 196515664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196515661) 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, 489864 + ... + 490264.

It is an arithmetic number, because the mean of its divisors is an integer number (9664281).

Almost surely, 2^196515664 is an apocalyptic number.

It is an amenable number.

196515664 is a deficient number, since it is larger than the sum of its proper divisors (190055576).

196515664 is a wasteful number, since it uses less digits than its factorization.

196515664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 793 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 196515664 is about 14018.4044741190. The cubic root of 196515664 is about 581.3875459126.

The spelling of 196515664 in words is "one hundred ninety-six million, five hundred fifteen thousand, six hundred sixty-four".