65656948137 has 16 divisors (see below), whose sum is σ = 99653234688. Its totient is φ = 38061998480.

The previous prime is 65656948127. The next prime is 65656948219. The reversal of 65656948137 is 73184965656.

It is not a de Polignac number, because 65656948137 - 2⁷ = 65656948009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65656948117) 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 15 ways as a sum of consecutive naturals, for example, 43251513 + ... + 43253030.

It is an arithmetic number, because the mean of its divisors is an integer number (6228327168).

Almost surely, 2^65656948137 is an apocalyptic number.

It is an amenable number.

65656948137 is a deficient number, since it is larger than the sum of its proper divisors (33996286551).

65656948137 is a wasteful number, since it uses less digits than its factorization.

65656948137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86504580.

The product of its digits is 32659200, while the sum is 60.

The spelling of 65656948137 in words is "sixty-five billion, six hundred fifty-six million, nine hundred forty-eight thousand, one hundred thirty-seven".