1066722207 has 8 divisors (see below), whose sum is σ = 1422447360. Its totient is φ = 711072600.

The previous prime is 1066722197. The next prime is 1066722253. The reversal of 1066722207 is 7022276601.

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

It is not a de Polignac number, because 1066722207 - 2⁷ = 1066722079 is a prime.

It is a super-2 number, since 2×1066722207² = 2275792533813901698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066722257) 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, 43594 + ... + 63512.

It is an arithmetic number, because the mean of its divisors is an integer number (177805920).

Almost surely, 2^1066722207 is an apocalyptic number.

1066722207 is a deficient number, since it is larger than the sum of its proper divisors (355725153).

1066722207 is a wasteful number, since it uses less digits than its factorization.

1066722207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37773.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 1066722207 is about 32660.7135102710. The cubic root of 1066722207 is about 1021.7636433342.

Adding to 1066722207 its reverse (7022276601), we get a palindrome (8088998808).

The spelling of 1066722207 in words is "one billion, sixty-six million, seven hundred twenty-two thousand, two hundred seven".