662016631 has 2 divisors, whose sum is σ = 662016632. Its totient is φ = 662016630.

The previous prime is 662016581. The next prime is 662016673. The reversal of 662016631 is 136610266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 662016631 - 2⁷ = 662016503 is a prime.

It is a super-2 number, since 2×662016631² = 876532039441180322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 662016593 and 662016602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662010631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331008315 + 331008316.

It is an arithmetic number, because the mean of its divisors is an integer number (331008316).

Almost surely, 2^662016631 is an apocalyptic number.

662016631 is a deficient number, since it is larger than the sum of its proper divisors (1).

662016631 is an equidigital number, since it uses as much as digits as its factorization.

662016631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 662016631 is about 25729.6838495929. The cubic root of 662016631 is about 871.5446338714.

Adding to 662016631 its reverse (136610266), we get a palindrome (798626897).

The spelling of 662016631 in words is "six hundred sixty-two million, sixteen thousand, six hundred thirty-one".