495961899201 has 24 divisors (see below), whose sum is σ = 724648827240. Its totient is φ = 326831383296.

The previous prime is 495961899197. The next prime is 495961899247. The reversal of 495961899201 is 102998169594.

495961899201 is a `hidden beast` number, since 4 + 9 + 5 + 9 + 618 + 9 + 9 + 2 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 188984956176 + 306976943025 = 434724^2 + 554055^2 .

It is not a de Polignac number, because 495961899201 - 2² = 495961899197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (495961899281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2729091 + ... + 2905143.

It is an arithmetic number, because the mean of its divisors is an integer number (30193701135).

Almost surely, 2^495961899201 is an apocalyptic number.

It is an amenable number.

495961899201 is a deficient number, since it is larger than the sum of its proper divisors (228686928039).

495961899201 is a wasteful number, since it uses less digits than its factorization.

495961899201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179665 (or 179662 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 63.

The spelling of 495961899201 in words is "four hundred ninety-five billion, nine hundred sixty-one million, eight hundred ninety-nine thousand, two hundred one".