6556605051 has 4 divisors (see below), whose sum is σ = 8742140072. Its totient is φ = 4371070032.

The previous prime is 6556605001. The next prime is 6556605053. The reversal of 6556605051 is 1505066556.

6556605051 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6556605051 - 2⁹ = 6556604539 is a prime.

It is a super-4 number, since 4×6556605051⁴ (a number of 40 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6556605053) 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, 1092767506 + ... + 1092767511.

It is an arithmetic number, because the mean of its divisors is an integer number (2185535018).

Almost surely, 2^6556605051 is an apocalyptic number.

6556605051 is a deficient number, since it is larger than the sum of its proper divisors (2185535021).

6556605051 is a wasteful number, since it uses less digits than its factorization.

6556605051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185535020.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 6556605051 is about 80972.8661404547. The cubic root of 6556605051 is about 1871.6573381252.

The spelling of 6556605051 in words is "six billion, five hundred fifty-six million, six hundred five thousand, fifty-one".