66100506093 has 24 divisors (see below), whose sum is σ = 96781950720. Its totient is φ = 43466510880.

The previous prime is 66100506091. The next prime is 66100506137. The reversal of 66100506093 is 39060500166.

66100506093 is a `hidden beast` number, since 6 + 61 + 0 + 0 + 506 + 0 + 93 = 666.

It is not a de Polignac number, because 66100506093 - 2¹ = 66100506091 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66100506091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 687955 + ... + 778127.

It is an arithmetic number, because the mean of its divisors is an integer number (4032581280).

Almost surely, 2^66100506093 is an apocalyptic number.

It is an amenable number.

66100506093 is a deficient number, since it is larger than the sum of its proper divisors (30681444627).

66100506093 is a wasteful number, since it uses less digits than its factorization.

66100506093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91289 (or 91286 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The spelling of 66100506093 in words is "sixty-six billion, one hundred million, five hundred six thousand, ninety-three".