2155632612047 has 2 divisors, whose sum is σ = 2155632612048. Its totient is φ = 2155632612046.

The previous prime is 2155632612017. The next prime is 2155632612101. The reversal of 2155632612047 is 7402162365512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2155632612047 - 2¹⁴ = 2155632595663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2155632611989 and 2155632612007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2155632612017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077816306023 + 1077816306024.

It is an arithmetic number, because the mean of its divisors is an integer number (1077816306024).

Almost surely, 2^{2155632612047} is an apocalyptic number.

2155632612047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155632612047 is an equidigital number, since it uses as much as digits as its factorization.

2155632612047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 44.

Adding to 2155632612047 its reverse (7402162365512), we get a palindrome (9557794977559).

The spelling of 2155632612047 in words is "two trillion, one hundred fifty-five billion, six hundred thirty-two million, six hundred twelve thousand, forty-seven".