65414862081 has 12 divisors (see below), whose sum is σ = 96792723300. Its totient is φ = 42546251520.

The previous prime is 65414862061. The next prime is 65414862131. The reversal of 65414862081 is 18026841456.

It is a happy number.

65414862081 is a `hidden beast` number, since 6 + 5 + 4 + 14 + 8 + 620 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8671334400 + 56743527681 = 93120^2 + 238209^2 .

It is not a de Polignac number, because 65414862081 - 2¹¹ = 65414860033 is a prime.

It is a super-2 number, since 2×65414862081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65414862061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88637656 + ... + 88638393.

It is an arithmetic number, because the mean of its divisors is an integer number (8066060275).

Almost surely, 2^65414862081 is an apocalyptic number.

It is an amenable number.

65414862081 is a deficient number, since it is larger than the sum of its proper divisors (31377861219).

65414862081 is a wasteful number, since it uses less digits than its factorization.

65414862081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177276096 (or 177276093 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 65414862081 in words is "sixty-five billion, four hundred fourteen million, eight hundred sixty-two thousand, eighty-one".