556216306061 has 4 divisors (see below), whose sum is σ = 599002175772. Its totient is φ = 513430436352.

The previous prime is 556216306043. The next prime is 556216306127. The reversal of 556216306061 is 160603612655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67327275625 + 488889030436 = 259475^2 + 699206^2 .

It is a cyclic number.

It is not a de Polignac number, because 556216306061 - 2³⁸ = 281338399117 is a prime.

It is a super-3 number, since 3×556216306061³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556216356061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21392934836 + ... + 21392934861.

It is an arithmetic number, because the mean of its divisors is an integer number (149750543943).

Almost surely, 2^556216306061 is an apocalyptic number.

It is an amenable number.

556216306061 is a deficient number, since it is larger than the sum of its proper divisors (42785869711).

556216306061 is a wasteful number, since it uses less digits than its factorization.

556216306061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42785869710.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 556216306061 in words is "five hundred fifty-six billion, two hundred sixteen million, three hundred six thousand, sixty-one".