66700670001002 has 4 divisors (see below), whose sum is σ = 100051005001506. Its totient is φ = 33350335000500.

The previous prime is 66700670000999. The next prime is 66700670001023. The reversal of 66700670001002 is 20010007600766.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37334556260401 + 29366113740601 = 6110201^2 + 5419051^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16675167500249 + ... + 16675167500252.

Almost surely, 2^{66700670001002} is an apocalyptic number.

66700670001002 is a deficient number, since it is larger than the sum of its proper divisors (33350335000504).

66700670001002 is a wasteful number, since it uses less digits than its factorization.

66700670001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33350335000503.

The product of its (nonzero) digits is 21168, while the sum is 35.

Adding to 66700670001002 its reverse (20010007600766), we get a palindrome (86710677601768).

The spelling of 66700670001002 in words is "sixty-six trillion, seven hundred billion, six hundred seventy million, one thousand, two".