2155614602429 has 2 divisors, whose sum is σ = 2155614602430. Its totient is φ = 2155614602428.

The previous prime is 2155614602381. The next prime is 2155614602447. The reversal of 2155614602429 is 9242064165512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2025526704100 + 130087898329 = 1423210^2 + 360677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2155614602429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2155614602629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077807301214 + 1077807301215.

It is an arithmetic number, because the mean of its divisors is an integer number (1077807301215).

Almost surely, 2^{2155614602429} is an apocalyptic number.

It is an amenable number.

2155614602429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155614602429 is an equidigital number, since it uses as much as digits as its factorization.

2155614602429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 2155614602429 in words is "two trillion, one hundred fifty-five billion, six hundred fourteen million, six hundred two thousand, four hundred twenty-nine".