6551554155 has 8 divisors (see below), whose sum is σ = 10482486672. Its totient is φ = 3494162208.

The previous prime is 6551554151. The next prime is 6551554157. The reversal of 6551554155 is 5514551556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6551554155 - 2² = 6551554151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6551554151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218385124 + ... + 218385153.

It is an arithmetic number, because the mean of its divisors is an integer number (1310310834).

Almost surely, 2^6551554155 is an apocalyptic number.

6551554155 is a deficient number, since it is larger than the sum of its proper divisors (3930932517).

6551554155 is a wasteful number, since it uses less digits than its factorization.

6551554155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436770285.

The product of its digits is 375000, while the sum is 42.

The square root of 6551554155 is about 80941.6713133600. The cubic root of 6551554155 is about 1871.1766027930.

The spelling of 6551554155 in words is "six billion, five hundred fifty-one million, five hundred fifty-four thousand, one hundred fifty-five".