6655073994 has 16 divisors (see below), whose sum is σ = 14789053440. Its totient is φ = 2218357980.

The previous prime is 6655073987. The next prime is 6655074001. The reversal of 6655073994 is 4993705566.

It is an interprime number because it is at equal distance from previous prime (6655073987) and next prime (6655074001).

It is a super-2 number, since 2×6655073994² = 88580019731230224072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 123242111 = 6655073994 / (6 + 6 + 5 + 5 + 0 + 7 + 3 + 9 + 9 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 6655073994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61621002 + ... + 61621109.

It is an arithmetic number, because the mean of its divisors is an integer number (924315840).

Almost surely, 2^6655073994 is an apocalyptic number.

6655073994 is an abundant number, since it is smaller than the sum of its proper divisors (8133979446).

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

6655073994 is a wasteful number, since it uses less digits than its factorization.

6655073994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123242122 (or 123242116 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 54.

The square root of 6655073994 is about 81578.6368726519. The cubic root of 6655073994 is about 1880.9805125560.

The spelling of 6655073994 in words is "six billion, six hundred fifty-five million, seventy-three thousand, nine hundred ninety-four".