66667279332000 has 96 divisors (see below), whose sum is σ = 218402007130944. Its totient is φ = 17777941152000.

The previous prime is 66667279331953. The next prime is 66667279332001. The reversal of 66667279332000 is 23397276666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×66667279332000² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66667279332001) 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, 2777791306 + ... + 2777815305.

It is an arithmetic number, because the mean of its divisors is an integer number (2275020907614).

Almost surely, 2^{66667279332000} is an apocalyptic number.

66667279332000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66667279332000 is an abundant number, since it is smaller than the sum of its proper divisors (151734727798944).

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

66667279332000 is a wasteful number, since it uses less digits than its factorization.

66667279332000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555606639 (or 5555606621 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 57.

The spelling of 66667279332000 in words is "sixty-six trillion, six hundred sixty-seven billion, two hundred seventy-nine million, three hundred thirty-two thousand".