66734074000690 has 16 divisors (see below), whose sum is σ = 120126142543680. Its totient is φ = 26692560857520.

The previous prime is 66734074000681. The next prime is 66734074000799. The reversal of 66734074000690 is 9600047043766.

It is a super-2 number, since 2×66734074000690² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133330566 + ... + 133830145.

It is an arithmetic number, because the mean of its divisors is an integer number (7507883908980).

Almost surely, 2^{66734074000690} is an apocalyptic number.

66734074000690 is a deficient number, since it is larger than the sum of its proper divisors (53392068542990).

66734074000690 is a wasteful number, since it uses less digits than its factorization.

66734074000690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267185697.

The product of its (nonzero) digits is 4572288, while the sum is 52.

The spelling of 66734074000690 in words is "sixty-six trillion, seven hundred thirty-four billion, seventy-four million, six hundred ninety", and thus it is an aban number.