1059639654544 has 135 divisors (see below), whose sum is σ = 2191831105107. Its totient is φ = 496230896832.

The previous prime is 1059639654517. The next prime is 1059639654547. The reversal of 1059639654544 is 4454569369501.

It is a happy number.

The square root of 1059639654544 is 1029388.

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

It is a super-2 number, since 2×1059639654544² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1059639654547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6345147549 + ... + 6345147715.

Almost surely, 2^{1059639654544} is an apocalyptic number.

1059639654544 is the 1029388-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1059639654544

1059639654544 is an abundant number, since it is smaller than the sum of its proper divisors (1132191450563).

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

1059639654544 is an frugal number, since it uses more digits than its factorization.

1059639654544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 69984000, while the sum is 61.

The spelling of 1059639654544 in words is "one trillion, fifty-nine billion, six hundred thirty-nine million, six hundred fifty-four thousand, five hundred forty-four".