6601616 has 20 divisors (see below), whose sum is σ = 14618112. Its totient is φ = 2829216.

The previous prime is 6601601. The next prime is 6601631. The reversal of 6601616 is 6161066.

It is an interprime number because it is at equal distance from previous prime (6601601) and next prime (6601631).

It is a super-2 number, since 2×6601616² = 87162667622912, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29360 + ... + 29583.

Almost surely, 2^6601616 is an apocalyptic number.

It is an amenable number.

6601616 is an abundant number, since it is smaller than the sum of its proper divisors (8016496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6601616 is a wasteful number, since it uses less digits than its factorization.

6601616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58958 (or 58952 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 6601616 is about 2569.3610100568. The cubic root of 6601616 is about 187.5930536630.

The spelling of 6601616 in words is "six million, six hundred one thousand, six hundred sixteen".