136820066 has 8 divisors (see below), whose sum is σ = 210003024. Its totient is φ = 66819060.

The previous prime is 136820051. The next prime is 136820093. The reversal of 136820066 is 660028631.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795380 + ... + 795551.

It is an arithmetic number, because the mean of its divisors is an integer number (26250378).

Almost surely, 2^136820066 is an apocalyptic number.

136820066 is a deficient number, since it is larger than the sum of its proper divisors (73182958).

136820066 is a wasteful number, since it uses less digits than its factorization.

136820066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590976.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 136820066 is about 11697.0109857177. The cubic root of 136820066 is about 515.2878850409.

Adding to 136820066 its reverse (660028631), we get a palindrome (796848697).

The spelling of 136820066 in words is "one hundred thirty-six million, eight hundred twenty thousand, sixty-six".