65126262157 has 4 divisors (see below), whose sum is σ = 71046831456. Its totient is φ = 59205692860.

The previous prime is 65126262127. The next prime is 65126262233. The reversal of 65126262157 is 75126262156.

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-65126262157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65126262127) 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, 2960284633 + ... + 2960284654.

It is an arithmetic number, because the mean of its divisors is an integer number (17761707864).

Almost surely, 2^65126262157 is an apocalyptic number.

It is an amenable number.

65126262157 is a deficient number, since it is larger than the sum of its proper divisors (5920569299).

65126262157 is a wasteful number, since it uses less digits than its factorization.

65126262157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920569298.

The product of its digits is 302400, while the sum is 43.

Subtracting 65126262157 from its reverse (75126262156), we obtain a palindrome (9999999999).

The spelling of 65126262157 in words is "sixty-five billion, one hundred twenty-six million, two hundred sixty-two thousand, one hundred fifty-seven".