65146907137 has 4 divisors (see below), whose sum is σ = 70158207700. Its totient is φ = 60135606576.

The previous prime is 65146907113. The next prime is 65146907167. The reversal of 65146907137 is 73170964156.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38012910961 + 27133996176 = 194969^2 + 164724^2 .

It is a cyclic number.

It is not a de Polignac number, because 65146907137 - 2⁷ = 65146907009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65146907167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505650262 + ... + 2505650287.

It is an arithmetic number, because the mean of its divisors is an integer number (17539551925).

Almost surely, 2^65146907137 is an apocalyptic number.

It is an amenable number.

65146907137 is a deficient number, since it is larger than the sum of its proper divisors (5011300563).

65146907137 is a wasteful number, since it uses less digits than its factorization.

65146907137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011300562.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 65146907137 in words is "sixty-five billion, one hundred forty-six million, nine hundred seven thousand, one hundred thirty-seven".