1549396541056 has 128 divisors (see below), whose sum is σ = 3861281612160. Its totient is φ = 602899476480.

The previous prime is 1549396541041. The next prime is 1549396541081. The reversal of 1549396541056 is 6501456939451.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 379786 + ... + 1800841.

It is an arithmetic number, because the mean of its divisors is an integer number (30166262595).

Almost surely, 2^{1549396541056} is an apocalyptic number.

1549396541056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1549396541056 is an abundant number, since it is smaller than the sum of its proper divisors (2311885071104).

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

1549396541056 is a wasteful number, since it uses less digits than its factorization.

1549396541056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180722 (or 2180710 counting only the distinct ones).

The product of its (nonzero) digits is 17496000, while the sum is 58.

The spelling of 1549396541056 in words is "one trillion, five hundred forty-nine billion, three hundred ninety-six million, five hundred forty-one thousand, fifty-six".