1516165646 has 16 divisors (see below), whose sum is σ = 2387791440. Its totient is φ = 721015680.

The previous prime is 1516165643. The next prime is 1516165699. The reversal of 1516165646 is 6465616151.

It is a super-2 number, since 2×1516165646² = 4597516532221194632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516165643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191195 + ... + 198966.

It is an arithmetic number, because the mean of its divisors is an integer number (149236965).

Almost surely, 2^1516165646 is an apocalyptic number.

1516165646 is a deficient number, since it is larger than the sum of its proper divisors (871625794).

1516165646 is a wasteful number, since it uses less digits than its factorization.

1516165646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390259.

The product of its digits is 129600, while the sum is 41.

The square root of 1516165646 is about 38937.9717756331. The cubic root of 1516165646 is about 1148.8117899985.

The spelling of 1516165646 in words is "one billion, five hundred sixteen million, one hundred sixty-five thousand, six hundred forty-six".