1138416445156 has 27 divisors (see below), whose sum is σ = 2006077533033. Its totient is φ = 565278586800.

The previous prime is 1138416445151. The next prime is 1138416445189. The reversal of 1138416445156 is 6515446148311.

The square root of 1138416445156 is 1066966.

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., 931012712100 + 207403733056 = 964890^2 + 455416^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1138416445151) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 322221966 + ... + 322225498.

Almost surely, 2^{1138416445156} is an apocalyptic number.

1138416445156 is the 1066966-th square number.

It is an amenable number.

1138416445156 is a deficient number, since it is larger than the sum of its proper divisors (867661087877).

1138416445156 is an frugal number, since it uses more digits than its factorization.

1138416445156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7372 (or 3686 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

Multiplying 1138416445156 by its sum of digits (49), we get a square (55782405812644 = 7468762²).

The spelling of 1138416445156 in words is "one trillion, one hundred thirty-eight billion, four hundred sixteen million, four hundred forty-five thousand, one hundred fifty-six".