1071256166 has 32 divisors (see below), whose sum is σ = 1671731040. Its totient is φ = 514584576.

The previous prime is 1071256133. The next prime is 1071256177. The reversal of 1071256166 is 6616521701.

It is a super-2 number, since 2×1071256166² = 2295179546386039112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 948290 + ... + 949418.

It is an arithmetic number, because the mean of its divisors is an integer number (52241595).

Almost surely, 2^1071256166 is an apocalyptic number.

1071256166 is a deficient number, since it is larger than the sum of its proper divisors (600474874).

1071256166 is a wasteful number, since it uses less digits than its factorization.

1071256166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1071256166 is about 32730.0498930264. The cubic root of 1071256166 is about 1023.2092200826.

Adding to 1071256166 its reverse (6616521701), we get a palindrome (7687777867).

The spelling of 1071256166 in words is "one billion, seventy-one million, two hundred fifty-six thousand, one hundred sixty-six".