66087012379 has 8 divisors (see below), whose sum is σ = 68232922112. Its totient is φ = 63941982120.

The previous prime is 66087012359. The next prime is 66087012449. The reversal of 66087012379 is 97321078066.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66087012379 - 2⁹ = 66087011867 is a prime.

It is a super-3 number, since 3×66087012379³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66087012359) 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 7 ways as a sum of consecutive naturals, for example, 65409 + ... + 369394.

It is an arithmetic number, because the mean of its divisors is an integer number (8529115264).

Almost surely, 2^66087012379 is an apocalyptic number.

66087012379 is a deficient number, since it is larger than the sum of its proper divisors (2145909733).

66087012379 is a wasteful number, since it uses less digits than its factorization.

66087012379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439737.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 66087012379 in words is "sixty-six billion, eighty-seven million, twelve thousand, three hundred seventy-nine".