555116156123 has 2 divisors, whose sum is σ = 555116156124. Its totient is φ = 555116156122.

The previous prime is 555116156047. The next prime is 555116156137. The reversal of 555116156123 is 321651611555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 555116156123 - 2²⁴ = 555099378907 is a prime.

It is a super-2 number, since 2×555116156123² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (555116156723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277558078061 + 277558078062.

It is an arithmetic number, because the mean of its divisors is an integer number (277558078062).

Almost surely, 2^555116156123 is an apocalyptic number.

555116156123 is a deficient number, since it is larger than the sum of its proper divisors (1).

555116156123 is an equidigital number, since it uses as much as digits as its factorization.

555116156123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 135000, while the sum is 41.

Adding to 555116156123 its reverse (321651611555), we get a palindrome (876767767678).

The spelling of 555116156123 in words is "five hundred fifty-five billion, one hundred sixteen million, one hundred fifty-six thousand, one hundred twenty-three".