1516314661 has 2 divisors, whose sum is σ = 1516314662. Its totient is φ = 1516314660.

The previous prime is 1516314617. The next prime is 1516314673. The reversal of 1516314661 is 1664136151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1507846561 + 8468100 = 38831^2 + 2910^2 .

It is a cyclic number.

It is not a de Polignac number, because 1516314661 - 2¹⁷ = 1516183589 is a prime.

It is a super-3 number, since 3×1516314661³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1516314601) 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, 758157330 + 758157331.

It is an arithmetic number, because the mean of its divisors is an integer number (758157331).

Almost surely, 2^1516314661 is an apocalyptic number.

It is an amenable number.

1516314661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516314661 is an equidigital number, since it uses as much as digits as its factorization.

1516314661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 1516314661 is about 38939.8852206834. The cubic root of 1516314661 is about 1148.8494254159.

The spelling of 1516314661 in words is "one billion, five hundred sixteen million, three hundred fourteen thousand, six hundred sixty-one".