12558711061 has 8 divisors (see below), whose sum is σ = 13538708064. Its totient is φ = 11580705840.

The previous prime is 12558711047. The next prime is 12558711073. The reversal of 12558711061 is 16011785521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12558711061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12558711061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12558711761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484831 + ... + 510076.

It is an arithmetic number, because the mean of its divisors is an integer number (1692338508).

Almost surely, 2^12558711061 is an apocalyptic number.

It is an amenable number.

12558711061 is a deficient number, since it is larger than the sum of its proper divisors (979997003).

12558711061 is an equidigital number, since it uses as much as digits as its factorization.

12558711061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995891.

The product of its (nonzero) digits is 16800, while the sum is 37.

The spelling of 12558711061 in words is "twelve billion, five hundred fifty-eight million, seven hundred eleven thousand, sixty-one".