66150506100660 has 24 divisors (see below), whose sum is σ = 185221417082016. Its totient is φ = 17640134960160.

The previous prime is 66150506100629. The next prime is 66150506100661. The reversal of 66150506100660 is 6600160505166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66150506100661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551254217446 + ... + 551254217565.

It is an arithmetic number, because the mean of its divisors is an integer number (7717559045084).

Almost surely, 2^{66150506100660} is an apocalyptic number.

66150506100660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66150506100660 is an abundant number, since it is smaller than the sum of its proper divisors (119070910981356).

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

66150506100660 is a wasteful number, since it uses less digits than its factorization.

66150506100660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102508435023 (or 1102508435021 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 66150506100660 in words is "sixty-six trillion, one hundred fifty billion, five hundred six million, one hundred thousand, six hundred sixty".