6516604374 has 24 divisors (see below), whose sum is σ = 15161080248. Its totient is φ = 1861886880.

The previous prime is 6516604357. The next prime is 6516604387. The reversal of 6516604374 is 4734066156.

It is a super-2 number, since 2×6516604374² = 84932265134471863752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11082367 + ... + 11082954.

It is an arithmetic number, because the mean of its divisors is an integer number (631711677).

Almost surely, 2^6516604374 is an apocalyptic number.

6516604374 is an abundant number, since it is smaller than the sum of its proper divisors (8644475874).

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

6516604374 is a wasteful number, since it uses less digits than its factorization.

6516604374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22165340 (or 22165333 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 6516604374 is about 80725.4877594431. The cubic root of 6516604374 is about 1867.8433556652.

The spelling of 6516604374 in words is "six billion, five hundred sixteen million, six hundred four thousand, three hundred seventy-four".