66767043340 has 24 divisors (see below), whose sum is σ = 140248567872. Its totient is φ = 26699621760.

The previous prime is 66767043323. The next prime is 66767043359. The reversal of 66767043340 is 4334076766.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373321 + ... + 522400.

It is an arithmetic number, because the mean of its divisors is an integer number (5843690328).

Almost surely, 2^66767043340 is an apocalyptic number.

It is an amenable number.

66767043340 is an abundant number, since it is smaller than the sum of its proper divisors (73481524532).

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

66767043340 is a wasteful number, since it uses less digits than its factorization.

66767043340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899457 (or 899455 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 46.

The spelling of 66767043340 in words is "sixty-six billion, seven hundred sixty-seven million, forty-three thousand, three hundred forty".