66676774034 has 16 divisors (see below), whose sum is σ = 108249892800. Its totient is φ = 30619250640.

The previous prime is 66676774033. The next prime is 66676774037. The reversal of 66676774034 is 43047767666.

It is not an unprimeable number, because it can be changed into a prime (66676774033) 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, 6438272 + ... + 6448619.

It is an arithmetic number, because the mean of its divisors is an integer number (6765618300).

Almost surely, 2^66676774034 is an apocalyptic number.

66676774034 is a deficient number, since it is larger than the sum of its proper divisors (41573118766).

66676774034 is a wasteful number, since it uses less digits than its factorization.

66676774034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12887105.

The product of its (nonzero) digits is 21337344, while the sum is 56.

The spelling of 66676774034 in words is "sixty-six billion, six hundred seventy-six million, seven hundred seventy-four thousand, thirty-four".