65856054041 has 4 divisors (see below), whose sum is σ = 65998909284. Its totient is φ = 65713198800.

The previous prime is 65856054037. The next prime is 65856054067. The reversal of 65856054041 is 14045065856.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30472939225 + 35383114816 = 174565^2 + 188104^2 .

It is a cyclic number.

It is not a de Polignac number, because 65856054041 - 2² = 65856054037 is a prime.

It is a super-2 number, since 2×65856054041² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65856053983 and 65856054001.

It is not an unprimeable number, because it can be changed into a prime (65856059041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71426930 + ... + 71427851.

It is an arithmetic number, because the mean of its divisors is an integer number (16499727321).

Almost surely, 2^65856054041 is an apocalyptic number.

It is an amenable number.

65856054041 is a deficient number, since it is larger than the sum of its proper divisors (142855243).

65856054041 is a wasteful number, since it uses less digits than its factorization.

65856054041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142855242.

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 65856054041 in words is "sixty-five billion, eight hundred fifty-six million, fifty-four thousand, forty-one".