66377988977367 has 8 divisors (see below), whose sum is σ = 90895984906096. Its totient is φ = 43055992850112.

The previous prime is 66377988977359. The next prime is 66377988977371. The reversal of 66377988977367 is 76377988977366.

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

It is not a de Polignac number, because 66377988977367 - 2³ = 66377988977359 is a prime.

It is a super-3 number, since 3×66377988977367³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66377988977327) 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, 298999950238 + ... + 298999950459.

It is an arithmetic number, because the mean of its divisors is an integer number (11361998113262).

Almost surely, 2^{66377988977367} is an apocalyptic number.

66377988977367 is a deficient number, since it is larger than the sum of its proper divisors (24517995928729).

66377988977367 is a wasteful number, since it uses less digits than its factorization.

66377988977367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597999900737.

The product of its digits is 169375836672, while the sum is 93.

Subtracting 66377988977367 from its reverse (76377988977366), we obtain a palindrome (9999999999999).

The spelling of 66377988977367 in words is "sixty-six trillion, three hundred seventy-seven billion, nine hundred eighty-eight million, nine hundred seventy-seven thousand, three hundred sixty-seven".