556876380061 has 2 divisors, whose sum is σ = 556876380062. Its totient is φ = 556876380060.

The previous prime is 556876380043. The next prime is 556876380101. The reversal of 556876380061 is 160083678655.

556876380061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325933660836 + 230942719225 = 570906^2 + 480565^2 .

It is a cyclic number.

It is not a de Polignac number, because 556876380061 - 2¹¹ = 556876378013 is a prime.

It is a super-2 number, since 2×556876380061² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 556876379984 and 556876380011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556876380761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278438190030 + 278438190031.

It is an arithmetic number, because the mean of its divisors is an integer number (278438190031).

Almost surely, 2^556876380061 is an apocalyptic number.

It is an amenable number.

556876380061 is a deficient number, since it is larger than the sum of its proper divisors (1).

556876380061 is an equidigital number, since it uses as much as digits as its factorization.

556876380061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 556876380061 in words is "five hundred fifty-six billion, eight hundred seventy-six million, three hundred eighty thousand, sixty-one".