556101947931 has 16 divisors (see below), whose sum is σ = 767421120000. Its totient is φ = 357771502368.

The previous prime is 556101947911. The next prime is 556101947957. The reversal of 556101947931 is 139749101655.

It is not a de Polignac number, because 556101947931 - 2⁷ = 556101947803 is a prime.

It is a super-2 number, since 2×556101947931² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (556101947911) 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, 1424881 + ... + 1772706.

It is an arithmetic number, because the mean of its divisors is an integer number (47963820000).

Almost surely, 2^556101947931 is an apocalyptic number.

556101947931 is a deficient number, since it is larger than the sum of its proper divisors (211319172069).

556101947931 is a wasteful number, since it uses less digits than its factorization.

556101947931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199618.

The product of its (nonzero) digits is 1020600, while the sum is 51.

The spelling of 556101947931 in words is "five hundred fifty-six billion, one hundred one million, nine hundred forty-seven thousand, nine hundred thirty-one".