2155614163477 has 2 divisors, whose sum is σ = 2155614163478. Its totient is φ = 2155614163476.

The previous prime is 2155614163457. The next prime is 2155614163489. The reversal of 2155614163477 is 7743614165512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2141498584996 + 14115578481 = 1463386^2 + 118809^2 .

It is a cyclic number.

It is not a de Polignac number, because 2155614163477 - 2⁷ = 2155614163349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2155614163457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077807081738 + 1077807081739.

It is an arithmetic number, because the mean of its divisors is an integer number (1077807081739).

Almost surely, 2^{2155614163477} is an apocalyptic number.

It is an amenable number.

2155614163477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155614163477 is an equidigital number, since it uses as much as digits as its factorization.

2155614163477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4233600, while the sum is 52.

The spelling of 2155614163477 in words is "two trillion, one hundred fifty-five billion, six hundred fourteen million, one hundred sixty-three thousand, four hundred seventy-seven".