6642516 has 12 divisors (see below), whose sum is σ = 15499232. Its totient is φ = 2214168.

The previous prime is 6642497. The next prime is 6642521. The reversal of 6642516 is 6152466.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276760 + ... + 276783.

Almost surely, 2^6642516 is an apocalyptic number.

It is an amenable number.

6642516 is an abundant number, since it is smaller than the sum of its proper divisors (8856716).

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

6642516 is a wasteful number, since it uses less digits than its factorization.

6642516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553550 (or 553548 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 6642516 is about 2577.3078977879. The cubic root of 6642516 is about 187.9796643162.

The spelling of 6642516 in words is "six million, six hundred forty-two thousand, five hundred sixteen".