1543561137132 has 96 divisors (see below), whose sum is σ = 4259805688320. Its totient is φ = 425639370240.

The previous prime is 1543561137113. The next prime is 1543561137149. The reversal of 1543561137132 is 2317311653451.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6015483 + ... + 6266829.

It is an arithmetic number, because the mean of its divisors is an integer number (44372975920).

Almost surely, 2^{1543561137132} is an apocalyptic number.

1543561137132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1543561137132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2129902844160).

1543561137132 is an abundant number, since it is smaller than the sum of its proper divisors (2716244551188).

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

1543561137132 is a wasteful number, since it uses less digits than its factorization.

1543561137132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253911 (or 253909 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The spelling of 1543561137132 in words is "one trillion, five hundred forty-three billion, five hundred sixty-one million, one hundred thirty-seven thousand, one hundred thirty-two".