196564465 has 16 divisors (see below), whose sum is σ = 245145600. Its totient is φ = 151123392.

The previous prime is 196564447. The next prime is 196564469. The reversal of 196564465 is 564465691.

It is a cyclic number.

It is not a de Polignac number, because 196564465 - 2⁷ = 196564337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196564469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29296 + ... + 35374.

It is an arithmetic number, because the mean of its divisors is an integer number (15321600).

Almost surely, 2^196564465 is an apocalyptic number.

It is an amenable number.

196564465 is a deficient number, since it is larger than the sum of its proper divisors (48581135).

196564465 is a wasteful number, since it uses less digits than its factorization.

196564465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336.

The product of its digits is 777600, while the sum is 46.

The square root of 196564465 is about 14020.1449707198. The cubic root of 196564465 is about 581.4356675141.

It can be divided in two parts, 1965 and 64465, that added together give a triangular number (66430 = T₃₆₄).

The spelling of 196564465 in words is "one hundred ninety-six million, five hundred sixty-four thousand, four hundred sixty-five".