66010550000 has 60 divisors (see below), whose sum is σ = 159859190232. Its totient is φ = 26404200000.

The previous prime is 66010549981. The next prime is 66010550009. The reversal of 66010550000 is 5501066.

It is a super-2 number, since 2×66010550000² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66010550009) 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 11 ways as a sum of consecutive naturals, for example, 610106 + ... + 710105.

Almost surely, 2^66010550000 is an apocalyptic number.

It is an amenable number.

66010550000 is an abundant number, since it is smaller than the sum of its proper divisors (93848640232).

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

66010550000 is an equidigital number, since it uses as much as digits as its factorization.

66010550000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320244 (or 1320218 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 66010550000 in words is "sixty-six billion, ten million, five hundred fifty thousand".