816532606 has 4 divisors (see below), whose sum is σ = 1224798912. Its totient is φ = 408266302.

The previous prime is 816532601. The next prime is 816532643. The reversal of 816532606 is 606235618.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 606235618 = 2 ⋅303117809.

It is a super-2 number, since 2×816532606² = 1333450993322302472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816532601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204133150 + ... + 204133153.

It is an arithmetic number, because the mean of its divisors is an integer number (306199728).

Almost surely, 2^816532606 is an apocalyptic number.

816532606 is a deficient number, since it is larger than the sum of its proper divisors (408266306).

816532606 is a wasteful number, since it uses less digits than its factorization.

816532606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408266305.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 816532606 is about 28575.0346631461. The cubic root of 816532606 is about 934.6690111197.

The spelling of 816532606 in words is "eight hundred sixteen million, five hundred thirty-two thousand, six hundred six".