65576873761 has 8 divisors (see below), whose sum is σ = 77529309120. Its totient is φ = 54270516048.

The previous prime is 65576873759. The next prime is 65576873777. The reversal of 65576873761 is 16737867556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65576873761 - 2¹ = 65576873759 is a prime.

It is a super-2 number, since 2×65576873761² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65576873761.

It is not an unprimeable number, because it can be changed into a prime (65576873741) 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, 161519191 + ... + 161519596.

It is an arithmetic number, because the mean of its divisors is an integer number (9691163640).

Almost surely, 2^65576873761 is an apocalyptic number.

It is an amenable number.

65576873761 is a deficient number, since it is larger than the sum of its proper divisors (11952435359).

65576873761 is a wasteful number, since it uses less digits than its factorization.

65576873761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323038823.

The product of its digits is 44452800, while the sum is 61.

The spelling of 65576873761 in words is "sixty-five billion, five hundred seventy-six million, eight hundred seventy-three thousand, seven hundred sixty-one".