14755721158649 has 2 divisors, whose sum is σ = 14755721158650. Its totient is φ = 14755721158648.

The previous prime is 14755721158621. The next prime is 14755721158667. The reversal of 14755721158649 is 94685112755741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12817867842025 + 1937853316624 = 3580205^2 + 1392068^2 .

It is a cyclic number.

It is not a de Polignac number, because 14755721158649 - 2²⁰ = 14755720110073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14755721158049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7377860579324 + 7377860579325.

It is an arithmetic number, because the mean of its divisors is an integer number (7377860579325).

Almost surely, 2^{14755721158649} is an apocalyptic number.

It is an amenable number.

14755721158649 is a deficient number, since it is larger than the sum of its proper divisors (1).

14755721158649 is an equidigital number, since it uses as much as digits as its factorization.

14755721158649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672000, while the sum is 65.

The spelling of 14755721158649 in words is "fourteen trillion, seven hundred fifty-five billion, seven hundred twenty-one million, one hundred fifty-eight thousand, six hundred forty-nine".