6354221755 has 36 divisors (see below), whose sum is σ = 9186680880. Its totient is φ = 4206796608.

The previous prime is 6354221749. The next prime is 6354221759. The reversal of 6354221755 is 5571224536.

It is not a de Polignac number, because 6354221755 - 2¹³ = 6354213563 is a prime.

It is a super-2 number, since 2×6354221755² = 80752268223430560050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6354221759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 190626 + ... + 221464.

It is an arithmetic number, because the mean of its divisors is an integer number (255185580).

Almost surely, 2^6354221755 is an apocalyptic number.

6354221755 is a deficient number, since it is larger than the sum of its proper divisors (2832459125).

6354221755 is a wasteful number, since it uses less digits than its factorization.

6354221755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30916 (or 30880 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 6354221755 is about 79713.3724979692. The cubic root of 6354221755 is about 1852.1981910431.

The spelling of 6354221755 in words is "six billion, three hundred fifty-four million, two hundred twenty-one thousand, seven hundred fifty-five".