1056661448136 has 128 divisors (see below), whose sum is σ = 3049757568000. Its totient is φ = 298832428800.

The previous prime is 1056661448131. The next prime is 1056661448191. The reversal of 1056661448136 is 6318441666501.

1056661448136 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1056661448136² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056661448131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90314815 + ... + 90326513.

It is an arithmetic number, because the mean of its divisors is an integer number (23826231000).

Almost surely, 2^{1056661448136} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1056661448136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524878784000).

1056661448136 is an abundant number, since it is smaller than the sum of its proper divisors (1993096119864).

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

1056661448136 is a wasteful number, since it uses less digits than its factorization.

1056661448136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17139 (or 17135 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 1056661448136 in words is "one trillion, fifty-six billion, six hundred sixty-one million, four hundred forty-eight thousand, one hundred thirty-six".