6655377599 has 4 divisors (see below), whose sum is σ = 7167329736. Its totient is φ = 6143425464.

The previous prime is 6655377593. The next prime is 6655377629. The reversal of 6655377599 is 9957735566.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6655377599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655377593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255976049 + ... + 255976074.

It is an arithmetic number, because the mean of its divisors is an integer number (1791832434).

Almost surely, 2^6655377599 is an apocalyptic number.

6655377599 is a deficient number, since it is larger than the sum of its proper divisors (511952137).

6655377599 is a wasteful number, since it uses less digits than its factorization.

6655377599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511952136.

The product of its digits is 53581500, while the sum is 62.

The square root of 6655377599 is about 81580.4976633509. The cubic root of 6655377599 is about 1881.0091156141.

The spelling of 6655377599 in words is "six billion, six hundred fifty-five million, three hundred seventy-seven thousand, five hundred ninety-nine".