516066621 has 16 divisors (see below), whose sum is σ = 786739200. Its totient is φ = 294763248.

The previous prime is 516066611. The next prime is 516066623. The reversal of 516066621 is 126660615.

It is not a de Polignac number, because 516066621 - 2¹⁵ = 516033853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516066623) 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, 61560 + ... + 69438.

It is an arithmetic number, because the mean of its divisors is an integer number (49171200).

Almost surely, 2^516066621 is an apocalyptic number.

It is an amenable number.

516066621 is a deficient number, since it is larger than the sum of its proper divisors (270672579).

516066621 is a wasteful number, since it uses less digits than its factorization.

516066621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11008.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 516066621 is about 22717.0997488676. The cubic root of 516066621 is about 802.1124488111.

The spelling of 516066621 in words is "five hundred sixteen million, sixty-six thousand, six hundred twenty-one".