516165634 has 4 divisors (see below), whose sum is σ = 774248454. Its totient is φ = 258082816.

The previous prime is 516165631. The next prime is 516165649. The reversal of 516165634 is 436561615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 362331225 + 153834409 = 19035^2 + 12403^2 .

It is a junction number, because it is equal to n+sod(n) for n = 516165593 and 516165602.

It is not an unprimeable number, because it can be changed into a prime (516165631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129041407 + ... + 129041410.

Almost surely, 2^516165634 is an apocalyptic number.

516165634 is a deficient number, since it is larger than the sum of its proper divisors (258082820).

516165634 is a wasteful number, since it uses less digits than its factorization.

516165634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258082819.

The product of its digits is 64800, while the sum is 37.

The square root of 516165634 is about 22719.2789058104. The cubic root of 516165634 is about 802.1637435329.

The spelling of 516165634 in words is "five hundred sixteen million, one hundred sixty-five thousand, six hundred thirty-four".