662037055649 has 2 divisors, whose sum is σ = 662037055650. Its totient is φ = 662037055648.

The previous prime is 662037055637. The next prime is 662037055651. The reversal of 662037055649 is 946550730266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640536112225 + 21500943424 = 800335^2 + 146632^2 .

It is a cyclic number.

It is not a de Polignac number, because 662037055649 - 2¹² = 662037051553 is a prime.

It is a super-2 number, since 2×662037055649² (a number of 24 digits) contains 22 as substring.

Together with 662037055651, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 662037055649.

It is not a weakly prime, because it can be changed into another prime (662037055679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331018527824 + 331018527825.

It is an arithmetic number, because the mean of its divisors is an integer number (331018527825).

Almost surely, 2^662037055649 is an apocalyptic number.

It is an amenable number.

662037055649 is a deficient number, since it is larger than the sum of its proper divisors (1).

662037055649 is an equidigital number, since it uses as much as digits as its factorization.

662037055649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 53.

The spelling of 662037055649 in words is "six hundred sixty-two billion, thirty-seven million, fifty-five thousand, six hundred forty-nine".