1071661700 has 18 divisors (see below), whose sum is σ = 2325506106. Its totient is φ = 428664640.

The previous prime is 1071661699. The next prime is 1071661733. The reversal of 1071661700 is 71661701.

It can be written as a sum of positive squares in 3 ways, for example, as 58003456 + 1013658244 = 7616^2 + 31838^2 .

It is a super-2 number, since 2×1071661700² = 2296917598493780000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5358209 + ... + 5358408.

Almost surely, 2^1071661700 is an apocalyptic number.

1071661700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1071661700 is an abundant number, since it is smaller than the sum of its proper divisors (1253844406).

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

1071661700 is a wasteful number, since it uses less digits than its factorization.

1071661700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10716631 (or 10716624 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 1071661700 is about 32736.2444394588. The cubic root of 1071661700 is about 1023.3383189204.

Subtracting from 1071661700 its reverse (71661701), we obtain a palindrome (999999999).

The spelling of 1071661700 in words is "one billion, seventy-one million, six hundred sixty-one thousand, seven hundred".