6618597078 has 16 divisors (see below), whose sum is σ = 13239507456. Its totient is φ = 2205813480.

The previous prime is 6618597071. The next prime is 6618597079. The reversal of 6618597078 is 8707958166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6618597071) 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, 58018 + ... + 128853.

It is an arithmetic number, because the mean of its divisors is an integer number (827469216).

Almost surely, 2^6618597078 is an apocalyptic number.

6618597078 is an abundant number, since it is smaller than the sum of its proper divisors (6620910378).

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

6618597078 is a wasteful number, since it uses less digits than its factorization.

6618597078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192779.

The product of its (nonzero) digits is 5080320, while the sum is 57.

The square root of 6618597078 is about 81354.7606351343. The cubic root of 6618597078 is about 1877.5376203260.

The spelling of 6618597078 in words is "six billion, six hundred eighteen million, five hundred ninety-seven thousand, seventy-eight".