66062687876438 has 48 divisors (see below), whose sum is σ = 111542129298432. Its totient is φ = 29309507871600.

The previous prime is 66062687876407. The next prime is 66062687876447. The reversal of 66062687876438 is 83467878626066.

66062687876438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3738848 + ... + 12087363.

It is an arithmetic number, because the mean of its divisors is an integer number (2323794360384).

Almost surely, 2^{66062687876438} is an apocalyptic number.

66062687876438 is a deficient number, since it is larger than the sum of its proper divisors (45479441421994).

66062687876438 is a wasteful number, since it uses less digits than its factorization.

66062687876438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15826649 (or 15826638 counting only the distinct ones).

The product of its (nonzero) digits is 4682022912, while the sum is 77.

The spelling of 66062687876438 in words is "sixty-six trillion, sixty-two billion, six hundred eighty-seven million, eight hundred seventy-six thousand, four hundred thirty-eight".