62661644616629 has 2 divisors, whose sum is σ = 62661644616630. Its totient is φ = 62661644616628.

The previous prime is 62661644616587. The next prime is 62661644616673. The reversal of 62661644616629 is 92661644616626.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56822921457604 + 5838723159025 = 7538098^2 + 2416345^2 .

It is a cyclic number.

It is not a de Polignac number, because 62661644616629 - 2²⁴ = 62661627839413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62661644610629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31330822308314 + 31330822308315.

It is an arithmetic number, because the mean of its divisors is an integer number (31330822308315).

Almost surely, 2^{62661644616629} is an apocalyptic number.

It is an amenable number.

62661644616629 is a deficient number, since it is larger than the sum of its proper divisors (1).

62661644616629 is an equidigital number, since it uses as much as digits as its factorization.

62661644616629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161243136, while the sum is 65.

The spelling of 62661644616629 in words is "sixty-two trillion, six hundred sixty-one billion, six hundred forty-four million, six hundred sixteen thousand, six hundred twenty-nine".