1051323666 has 16 divisors (see below), whose sum is σ = 2134030944. Its totient is φ = 345210624.

The previous prime is 1051323659. The next prime is 1051323667. The reversal of 1051323666 is 6663231501.

It is a super-2 number, since 2×1051323666² = 2210562901383359112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051323667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307215 + ... + 1308018.

It is an arithmetic number, because the mean of its divisors is an integer number (133376934).

Almost surely, 2^1051323666 is an apocalyptic number.

1051323666 is an abundant number, since it is smaller than the sum of its proper divisors (1082707278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051323666 is a wasteful number, since it uses less digits than its factorization.

1051323666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615305.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 1051323666 is about 32424.1216689057. The cubic root of 1051323666 is about 1016.8232788327.

The spelling of 1051323666 in words is "one billion, fifty-one million, three hundred twenty-three thousand, six hundred sixty-six".