196177356961 has 2 divisors, whose sum is σ = 196177356962. Its totient is φ = 196177356960.

The previous prime is 196177356953. The next prime is 196177356979. The reversal of 196177356961 is 169653771691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172877166225 + 23300190736 = 415785^2 + 152644^2 .

It is a cyclic number.

It is not a de Polignac number, because 196177356961 - 2³ = 196177356953 is a prime.

It is a super-3 number, since 3×196177356961³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196177356961.

It is not a weakly prime, because it can be changed into another prime (196177366961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98088678480 + 98088678481.

It is an arithmetic number, because the mean of its divisors is an integer number (98088678481).

Almost surely, 2^196177356961 is an apocalyptic number.

It is an amenable number.

196177356961 is a deficient number, since it is larger than the sum of its proper divisors (1).

196177356961 is an equidigital number, since it uses as much as digits as its factorization.

196177356961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12859560, while the sum is 61.

The spelling of 196177356961 in words is "one hundred ninety-six billion, one hundred seventy-seven million, three hundred fifty-six thousand, nine hundred sixty-one".