65361072771 has 8 divisors (see below), whose sum is σ = 96831218960. Its totient is φ = 43574048496.

The previous prime is 65361072769. The next prime is 65361072773. The reversal of 65361072771 is 17727016356.

65361072771 is a `hidden beast` number, since 6 + 5 + 3 + 610 + 7 + 27 + 7 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (65361072769) and next prime (65361072773).

It is not a de Polignac number, because 65361072771 - 2¹ = 65361072769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65361072773) 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, 1210390210 + ... + 1210390263.

It is an arithmetic number, because the mean of its divisors is an integer number (12103902370).

Almost surely, 2^65361072771 is an apocalyptic number.

65361072771 is a deficient number, since it is larger than the sum of its proper divisors (31470146189).

65361072771 is a wasteful number, since it uses less digits than its factorization.

65361072771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420780482 (or 2420780476 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The spelling of 65361072771 in words is "sixty-five billion, three hundred sixty-one million, seventy-two thousand, seven hundred seventy-one".