662064631013 has 2 divisors, whose sum is σ = 662064631014. Its totient is φ = 662064631012.

The previous prime is 662064631009. The next prime is 662064631051. The reversal of 662064631013 is 310136460266.

It is an a-pointer prime, because the next prime (662064631051) can be obtained adding 662064631013 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429159940609 + 232904690404 = 655103^2 + 482602^2 .

It is a cyclic number.

It is not a de Polignac number, because 662064631013 - 2² = 662064631009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662064634013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331032315506 + 331032315507.

It is an arithmetic number, because the mean of its divisors is an integer number (331032315507).

Almost surely, 2^662064631013 is an apocalyptic number.

It is an amenable number.

662064631013 is a deficient number, since it is larger than the sum of its proper divisors (1).

662064631013 is an equidigital number, since it uses as much as digits as its factorization.

662064631013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 662064631013 in words is "six hundred sixty-two billion, sixty-four million, six hundred thirty-one thousand, thirteen".