516662643 has 16 divisors (see below), whose sum is σ = 795415040. Its totient is φ = 292190976.

The previous prime is 516662591. The next prime is 516662659. The reversal of 516662643 is 346266615.

It is not a de Polignac number, because 516662643 - 2¹⁰ = 516661619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516662693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124783 + ... + 128856.

It is an arithmetic number, because the mean of its divisors is an integer number (49713440).

Almost surely, 2^516662643 is an apocalyptic number.

516662643 is a deficient number, since it is larger than the sum of its proper divisors (278752397).

516662643 is a wasteful number, since it uses less digits than its factorization.

516662643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253746.

The product of its digits is 155520, while the sum is 39.

The square root of 516662643 is about 22730.2143192712. The cubic root of 516662643 is about 802.4211251950.

The spelling of 516662643 in words is "five hundred sixteen million, six hundred sixty-two thousand, six hundred forty-three".