66006061000 has 64 divisors (see below), whose sum is σ = 168495500160. Its totient is φ = 24002200000.

The previous prime is 66006060949. The next prime is 66006061003. The reversal of 66006061000 is 16060066.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (66006061003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2989276 + ... + 3011275.

It is an arithmetic number, because the mean of its divisors is an integer number (2632742190).

Almost surely, 2^66006061000 is an apocalyptic number.

It is an amenable number.

66006061000 is an abundant number, since it is smaller than the sum of its proper divisors (102489439160).

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

66006061000 is a wasteful number, since it uses less digits than its factorization.

66006061000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000583 (or 6000569 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 66006061000 in words is "sixty-six billion, six million, sixty-one thousand".