66060206006820 has 48 divisors (see below), whose sum is σ = 184969133290368. Its totient is φ = 17616001937920.

The previous prime is 66060206006819. The next prime is 66060206006831. The reversal of 66060206006820 is 2860060206066.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21019660 + ... + 23957180.

It is an arithmetic number, because the mean of its divisors is an integer number (3853523610216).

Almost surely, 2^{66060206006820} is an apocalyptic number.

66060206006820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66060206006820 is an abundant number, since it is smaller than the sum of its proper divisors (118908927283548).

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

66060206006820 is a wasteful number, since it uses less digits than its factorization.

66060206006820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312340 (or 3312338 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 66060206006820 in words is "sixty-six trillion, sixty billion, two hundred six million, six thousand, eight hundred twenty".