1616462657 has 2 divisors, whose sum is σ = 1616462658. Its totient is φ = 1616462656.

The previous prime is 1616462647. The next prime is 1616462669. The reversal of 1616462657 is 7562646161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1330717441 + 285745216 = 36479^2 + 16904^2 .

It is a cyclic number.

It is not a de Polignac number, because 1616462657 - 2⁴ = 1616462641 is a prime.

It is a super-2 number, since 2×1616462657² = 5225903042950999298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1616462647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808231328 + 808231329.

It is an arithmetic number, because the mean of its divisors is an integer number (808231329).

Almost surely, 2^1616462657 is an apocalyptic number.

It is an amenable number.

1616462657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616462657 is an equidigital number, since it uses as much as digits as its factorization.

1616462657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 1616462657 is about 40205.2565841831. The cubic root of 1616462657 is about 1173.6048404184.

The spelling of 1616462657 in words is "one billion, six hundred sixteen million, four hundred sixty-two thousand, six hundred fifty-seven".