65078087057 has 4 divisors (see below), whose sum is σ = 65080436736. Its totient is φ = 65075737380.

The previous prime is 65078087051. The next prime is 65078087089. The reversal of 65078087057 is 75078087056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65078087057 - 2¹⁸ = 65077824913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65078087051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1132793 + ... + 1188854.

It is an arithmetic number, because the mean of its divisors is an integer number (16270109184).

Almost surely, 2^65078087057 is an apocalyptic number.

It is an amenable number.

65078087057 is a deficient number, since it is larger than the sum of its proper divisors (2349679).

65078087057 is a wasteful number, since it uses less digits than its factorization.

65078087057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349678.

The product of its (nonzero) digits is 3292800, while the sum is 53.

Subtracting 65078087057 from its reverse (75078087056), we obtain a palindrome (9999999999).

The spelling of 65078087057 in words is "sixty-five billion, seventy-eight million, eighty-seven thousand, fifty-seven".