65455191937 has 4 divisors (see below), whose sum is σ = 65459240896. Its totient is φ = 65451142980.

The previous prime is 65455191931. The next prime is 65455191941. The reversal of 65455191937 is 73919155456.

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 a de Polignac number, because none of the positive numbers 2^k-65455191937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65455191931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000133 + ... + 2032594.

It is an arithmetic number, because the mean of its divisors is an integer number (16364810224).

Almost surely, 2^65455191937 is an apocalyptic number.

It is an amenable number.

65455191937 is a deficient number, since it is larger than the sum of its proper divisors (4048959).

65455191937 is a wasteful number, since it uses less digits than its factorization.

65455191937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048958.

The product of its digits is 5103000, while the sum is 55.

It can be divided in two parts, 6545519 and 1937, that added together give a palindrome (6547456).

The spelling of 65455191937 in words is "sixty-five billion, four hundred fifty-five million, one hundred ninety-one thousand, nine hundred thirty-seven".