136566681463 has 8 divisors (see below), whose sum is σ = 143766378800. Its totient is φ = 129368181888.

The previous prime is 136566681413. The next prime is 136566681473. The reversal of 136566681463 is 364186665631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136566681463 - 2³³ = 127976746871 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 (136566681403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60498 + ... + 526111.

It is an arithmetic number, because the mean of its divisors is an integer number (17970797350).

Almost surely, 2^136566681463 is an apocalyptic number.

136566681463 is a deficient number, since it is larger than the sum of its proper divisors (7199697337).

136566681463 is a wasteful number, since it uses less digits than its factorization.

136566681463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598881.

The product of its digits is 11197440, while the sum is 55.

The spelling of 136566681463 in words is "one hundred thirty-six billion, five hundred sixty-six million, six hundred eighty-one thousand, four hundred sixty-three".