2143546561560 has 32 divisors (see below), whose sum is σ = 6430639685040. Its totient is φ = 571612416384.

The previous prime is 2143546561549. The next prime is 2143546561567. The reversal of 2143546561560 is 651656453412.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143546561567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8931443887 + ... + 8931444126.

Almost surely, 2^{2143546561560} is an apocalyptic number.

2143546561560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143546561560 is an abundant number, since it is smaller than the sum of its proper divisors (4287093123480).

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

2143546561560 is a wasteful number, since it uses less digits than its factorization.

2143546561560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17862888027 (or 17862888023 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 2143546561560 in words is "two trillion, one hundred forty-three billion, five hundred forty-six million, five hundred sixty-one thousand, five hundred sixty".