6422551655 has 16 divisors (see below), whose sum is σ = 8316588000. Its totient is φ = 4733278848.

The previous prime is 6422551453. The next prime is 6422551679. The reversal of 6422551655 is 5561552246.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6422551655 is a prime.

It is a super-2 number, since 2×6422551655² = 82498339522286478050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 66572 + ... + 131441.

It is an arithmetic number, because the mean of its divisors is an integer number (519786750).

Almost surely, 2^6422551655 is an apocalyptic number.

6422551655 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6422551655 is a deficient number, since it is larger than the sum of its proper divisors (1894036345).

6422551655 is a wasteful number, since it uses less digits than its factorization.

6422551655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198530.

The product of its digits is 360000, while the sum is 41.

The square root of 6422551655 is about 80140.8238976865. The cubic root of 6422551655 is about 1858.8137168184.

The spelling of 6422551655 in words is "six billion, four hundred twenty-two million, five hundred fifty-one thousand, six hundred fifty-five".