1066688802223 has 8 divisors (see below), whose sum is σ = 1165577587200. Its totient is φ = 968119529880.

The previous prime is 1066688802211. The next prime is 1066688802247. The reversal of 1066688802223 is 3222088866601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066688802223 is a prime.

It is a super-2 number, since 2×1066688802223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066688809223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79871173 + ... + 79884526.

It is an arithmetic number, because the mean of its divisors is an integer number (145697198400).

Almost surely, 2^{1066688802223} is an apocalyptic number.

1066688802223 is a deficient number, since it is larger than the sum of its proper divisors (98888784977).

1066688802223 is a wasteful number, since it uses less digits than its factorization.

1066688802223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159756317.

The product of its (nonzero) digits is 2654208, while the sum is 52.

The spelling of 1066688802223 in words is "one trillion, sixty-six billion, six hundred eighty-eight million, eight hundred two thousand, two hundred twenty-three".