66700670001038 has 32 divisors (see below), whose sum is σ = 105420323750400. Its totient is φ = 31564026605664.

The previous prime is 66700670001037. The next prime is 66700670001041. The reversal of 66700670001038 is 83010007600766.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66700670001038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66700670001037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158163503 + ... + 158584661.

It is an arithmetic number, because the mean of its divisors is an integer number (3294385117200).

Almost surely, 2^{66700670001038} is an apocalyptic number.

66700670001038 is a deficient number, since it is larger than the sum of its proper divisors (38719653749362).

66700670001038 is a wasteful number, since it uses less digits than its factorization.

66700670001038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425264.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 66700670001038 in words is "sixty-six trillion, seven hundred billion, six hundred seventy million, one thousand, thirty-eight".