1139957665344 has 147 divisors (see below), whose sum is σ = 3392290008523. Its totient is φ = 379909014912.

The previous prime is 1139957665339. The next prime is 1139957665381. The reversal of 1139957665344 is 4435667599311.

The square root of 1139957665344 is 1067688.

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

1139957665344 is a `hidden beast` number, since 1 + 1 + 3 + 9 + 9 + 576 + 6 + 53 + 4 + 4 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 230618137 + ... + 230623079.

Almost surely, 2^{1139957665344} is an apocalyptic number.

1139957665344 is the 1067688-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1139957665344

1139957665344 is an abundant number, since it is smaller than the sum of its proper divisors (2252332343179).

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

1139957665344 is an frugal number, since it uses more digits than its factorization.

1139957665344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9916 (or 4948 counting only the distinct ones).

The product of its digits is 73483200, while the sum is 63.

The spelling of 1139957665344 in words is "one trillion, one hundred thirty-nine billion, nine hundred fifty-seven million, six hundred sixty-five thousand, three hundred forty-four".