1061390336644 has 27 divisors (see below), whose sum is σ = 2041684928101. Its totient is φ = 482439850640.

The previous prime is 1061390336609. The next prime is 1061390336663. The reversal of 1061390336644 is 4466330931601.

The square root of 1061390336644 is 1030238.

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., 82161343044 + 979228993600 = 286638^2 + 989560^2 .

It is a super-2 number, since 2×1061390336644² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1061390336594 and 1061390336603.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 22641822 + ... + 22688650.

Almost surely, 2^{1061390336644} is an apocalyptic number.

1061390336644 is the 1030238-th square number.

It is an amenable number.

1061390336644 is a deficient number, since it is larger than the sum of its proper divisors (980294591457).

1061390336644 is an frugal number, since it uses more digits than its factorization.

1061390336644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93684 (or 46842 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 46.

The spelling of 1061390336644 in words is "one trillion, sixty-one billion, three hundred ninety million, three hundred thirty-six thousand, six hundred forty-four".