65744722136 has 32 divisors (see below), whose sum is σ = 129269001600. Its totient is φ = 31304044800.

The previous prime is 65744722091. The next prime is 65744722181. The reversal of 65744722136 is 63122744756.

It is an interprime number because it is at equal distance from previous prime (65744722091) and next prime (65744722181).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1924040 + ... + 1957911.

It is an arithmetic number, because the mean of its divisors is an integer number (4039656300).

Almost surely, 2^65744722136 is an apocalyptic number.

It is an amenable number.

65744722136 is a deficient number, since it is larger than the sum of its proper divisors (63524279464).

65744722136 is a wasteful number, since it uses less digits than its factorization.

65744722136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882059 (or 3882055 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 47.

The spelling of 65744722136 in words is "sixty-five billion, seven hundred forty-four million, seven hundred twenty-two thousand, one hundred thirty-six".