137665366463 has 4 divisors (see below), whose sum is σ = 142106184768. Its totient is φ = 133224548160.

The previous prime is 137665366451. The next prime is 137665366481. The reversal of 137665366463 is 364663566731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364663566731 = 17 ⋅21450798043.

It is a cyclic number.

It is not a de Polignac number, because 137665366463 - 2⁸ = 137665366207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137665366399 and 137665366408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137665366483) 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, 2220409106 + ... + 2220409167.

It is an arithmetic number, because the mean of its divisors is an integer number (35526546192).

Almost surely, 2^137665366463 is an apocalyptic number.

137665366463 is a deficient number, since it is larger than the sum of its proper divisors (4440818305).

137665366463 is an equidigital number, since it uses as much as digits as its factorization.

137665366463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440818304.

The product of its digits is 29393280, while the sum is 56.

The spelling of 137665366463 in words is "one hundred thirty-seven billion, six hundred sixty-five million, three hundred sixty-six thousand, four hundred sixty-three".