6550695679 has 4 divisors (see below), whose sum is σ = 7146213480. Its totient is φ = 5955177880.

The previous prime is 6550695677. The next prime is 6550695703. The reversal of 6550695679 is 9765960556.

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

It is a cyclic number.

It is not a de Polignac number, because 6550695679 - 2¹ = 6550695677 is a prime.

It is a super-2 number, since 2×6550695679² = 85823227757738542082, which contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550695677) 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, 297758884 + ... + 297758905.

It is an arithmetic number, because the mean of its divisors is an integer number (1786553370).

Almost surely, 2^6550695679 is an apocalyptic number.

6550695679 is a deficient number, since it is larger than the sum of its proper divisors (595517801).

6550695679 is a wasteful number, since it uses less digits than its factorization.

6550695679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595517800.

The product of its (nonzero) digits is 15309000, while the sum is 58.

The square root of 6550695679 is about 80936.3680862936. The cubic root of 6550695679 is about 1871.0948700043.

The spelling of 6550695679 in words is "six billion, five hundred fifty million, six hundred ninety-five thousand, six hundred seventy-nine".