556615551061 has 8 divisors (see below), whose sum is σ = 586020790880. Its totient is φ = 527221279728.

The previous prime is 556615551031. The next prime is 556615551071. The reversal of 556615551061 is 160155516655.

It is a happy number.

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-556615551061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556615551031) 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, 2637846 + ... + 2841031.

It is an arithmetic number, because the mean of its divisors is an integer number (73252598860).

Almost surely, 2^556615551061 is an apocalyptic number.

It is an amenable number.

556615551061 is a deficient number, since it is larger than the sum of its proper divisors (29405239819).

556615551061 is a wasteful number, since it uses less digits than its factorization.

556615551061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5484243.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 556615551061 in words is "five hundred fifty-six billion, six hundred fifteen million, five hundred fifty-one thousand, sixty-one".