155614636242349 has 2 divisors, whose sum is σ = 155614636242350. Its totient is φ = 155614636242348.

The previous prime is 155614636242271. The next prime is 155614636242409. The reversal of 155614636242349 is 943242636416551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132559369714249 + 23055266528100 = 11513443^2 + 4801590^2 .

It is a cyclic number.

It is not a de Polignac number, because 155614636242349 - 2⁹ = 155614636241837 is a prime.

It is a super-2 number, since 2×155614636242349² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155614636242449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77807318121174 + 77807318121175.

It is an arithmetic number, because the mean of its divisors is an integer number (77807318121175).

Almost surely, 2^{155614636242349} is an apocalyptic number.

It is an amenable number.

155614636242349 is a deficient number, since it is larger than the sum of its proper divisors (1).

155614636242349 is an equidigital number, since it uses as much as digits as its factorization.

155614636242349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111974400, while the sum is 61.

The spelling of 155614636242349 in words is "one hundred fifty-five trillion, six hundred fourteen billion, six hundred thirty-six million, two hundred forty-two thousand, three hundred forty-nine".