1071837807616 has 33 divisors (see below), whose sum is σ = 2142695127261. Its totient is φ = 535902339072.

The previous prime is 1071837807517. The next prime is 1071837807641. The reversal of 1071837807616 is 6167087381701.

The square root of 1071837807616 is 1035296.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 940434457600 + 131403350016 = 969760^2 + 362496^2 .

It is a super-2 number, since 2×1071837807616² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 33113296 + ... + 33145648.

Almost surely, 2^{1071837807616} is an apocalyptic number.

1071837807616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1071837807616 is the 1035296-th square number.

It is an amenable number.

1071837807616 is a deficient number, since it is larger than the sum of its proper divisors (1070857319645).

1071837807616 is an frugal number, since it uses more digits than its factorization.

1071837807616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64726 (or 32355 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 55.

The spelling of 1071837807616 in words is "one trillion, seventy-one billion, eight hundred thirty-seven million, eight hundred seven thousand, six hundred sixteen".