20601702150066 has 64 divisors (see below), whose sum is σ = 47435963126400. Its totient is φ = 6623465853888.

The previous prime is 20601702150041. The next prime is 20601702150121. The reversal of 20601702150066 is 66005120710602.

It is a happy number.

20601702150066 is a `hidden beast` number, since 2 + 0 + 6 + 0 + 1 + 70 + 21 + 500 + 66 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20601702150066.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60834181 + ... + 61171896.

It is an arithmetic number, because the mean of its divisors is an integer number (741186923850).

Almost surely, 2^{20601702150066} is an apocalyptic number.

20601702150066 is an abundant number, since it is smaller than the sum of its proper divisors (26834260976334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20601702150066 is a wasteful number, since it uses less digits than its factorization.

20601702150066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122006200 (or 122006194 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 20601702150066 its reverse (66005120710602), we get a palindrome (86606822860668).

The spelling of 20601702150066 in words is "twenty trillion, six hundred one billion, seven hundred two million, one hundred fifty thousand, sixty-six".