1071080646 has 16 divisors (see below), whose sum is σ = 2166231600. Its totient is φ = 353015168.

The previous prime is 1071080641. The next prime is 1071080663. The reversal of 1071080646 is 6460801701.

It is a happy number.

It is a super-2 number, since 2×1071080646² = 2294427500471554632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071080641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002351 + ... + 1003418.

It is an arithmetic number, because the mean of its divisors is an integer number (135389475).

Almost surely, 2^1071080646 is an apocalyptic number.

1071080646 is an abundant number, since it is smaller than the sum of its proper divisors (1095150954).

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

1071080646 is a wasteful number, since it uses less digits than its factorization.

1071080646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005863.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1071080646 is about 32727.3684551630. The cubic root of 1071080646 is about 1023.1533344480.

The spelling of 1071080646 in words is "one billion, seventy-one million, eighty thousand, six hundred forty-six".