6556629942 has 32 divisors (see below), whose sum is σ = 14574751200. Its totient is φ = 2184873984.

The previous prime is 6556629929. The next prime is 6556629943. The reversal of 6556629942 is 2499266556.

6556629942 is a `hidden beast` number, since 6 + 5 + 5 + 6 + 629 + 9 + 4 + 2 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6556629943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178534 + ... + 212102.

It is an arithmetic number, because the mean of its divisors is an integer number (455460975).

Almost surely, 2^6556629942 is an apocalyptic number.

6556629942 is an abundant number, since it is smaller than the sum of its proper divisors (8018121258).

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

6556629942 is a wasteful number, since it uses less digits than its factorization.

6556629942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37197 (or 37191 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The square root of 6556629942 is about 80973.0198399442. The cubic root of 6556629942 is about 1871.6597065950.

The spelling of 6556629942 in words is "six billion, five hundred fifty-six million, six hundred twenty-nine thousand, nine hundred forty-two".