6616504340 has 24 divisors (see below), whose sum is σ = 13901862912. Its totient is φ = 2645229600.

The previous prime is 6616504337. The next prime is 6616504343. The reversal of 6616504340 is 434056166.

It is an interprime number because it is at equal distance from previous prime (6616504337) and next prime (6616504343).

It is a self number, because there is not a number n which added to its sum of digits gives 6616504340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6616504343) 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, 45764 + ... + 123803.

It is an arithmetic number, because the mean of its divisors is an integer number (579244288).

Almost surely, 2^6616504340 is an apocalyptic number.

It is an amenable number.

6616504340 is an abundant number, since it is smaller than the sum of its proper divisors (7285358572).

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

6616504340 is a wasteful number, since it uses less digits than its factorization.

6616504340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171527 (or 171525 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 6616504340 is about 81341.8978141032. The cubic root of 6616504340 is about 1877.3397129007.

The spelling of 6616504340 in words is "six billion, six hundred sixteen million, five hundred four thousand, three hundred forty".