516646461 has 8 divisors (see below), whose sum is σ = 725117920. Its totient is φ = 326302992.

The previous prime is 516646433. The next prime is 516646489. The reversal of 516646461 is 164646615.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (516646433) and next prime (516646489).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 516646461 - 2¹⁴ = 516630077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516646561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4531930 + ... + 4532043.

It is an arithmetic number, because the mean of its divisors is an integer number (90639740).

Almost surely, 2^516646461 is an apocalyptic number.

It is an amenable number.

516646461 is a deficient number, since it is larger than the sum of its proper divisors (208471459).

516646461 is a wasteful number, since it uses less digits than its factorization.

516646461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9063995.

The product of its digits is 103680, while the sum is 39.

The square root of 516646461 is about 22729.8583585556. The cubic root of 516646461 is about 802.4127477658.

The spelling of 516646461 in words is "five hundred sixteen million, six hundred forty-six thousand, four hundred sixty-one".