556660501001 has 16 divisors (see below), whose sum is σ = 643221684288. Its totient is φ = 476113612800.

The previous prime is 556660500997. The next prime is 556660501003. The reversal of 556660501001 is 100105066655.

It is a cyclic number.

It is not a de Polignac number, because 556660501001 - 2² = 556660500997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556660501003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25835 + ... + 1055456.

It is an arithmetic number, because the mean of its divisors is an integer number (40201355268).

Almost surely, 2^556660501001 is an apocalyptic number.

It is an amenable number.

556660501001 is a deficient number, since it is larger than the sum of its proper divisors (86561183287).

556660501001 is a wasteful number, since it uses less digits than its factorization.

556660501001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084072.

The product of its (nonzero) digits is 27000, while the sum is 35.

Adding to 556660501001 its reverse (100105066655), we get a palindrome (656765567656).

The spelling of 556660501001 in words is "five hundred fifty-six billion, six hundred sixty million, five hundred one thousand, one".