196236664805 has 32 divisors (see below), whose sum is σ = 247711154400. Its totient is φ = 149022720000.

The previous prime is 196236664787. The next prime is 196236664817. The reversal of 196236664805 is 508466632691.

It can be written as a sum of positive squares in 16 ways, for example, as 65228138404 + 131008526401 = 255398^2 + 361951^2 .

It is not a de Polignac number, because 196236664805 - 2¹² = 196236660709 is a prime.

It is a super-2 number, since 2×196236664805² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28026305 + ... + 28033305.

It is an arithmetic number, because the mean of its divisors is an integer number (7740973575).

Almost surely, 2^196236664805 is an apocalyptic number.

It is an amenable number.

196236664805 is a deficient number, since it is larger than the sum of its proper divisors (51474489595).

196236664805 is a wasteful number, since it uses less digits than its factorization.

196236664805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10265.

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 196236664805 in words is "one hundred ninety-six billion, two hundred thirty-six million, six hundred sixty-four thousand, eight hundred five".