6455221135 has 12 divisors (see below), whose sum is σ = 8514490824. Its totient is φ = 4694705840.

The previous prime is 6455221111. The next prime is 6455221229. The reversal of 6455221135 is 5311225546.

It is not a de Polignac number, because 6455221135 - 2¹⁵ = 6455188367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6455221135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5334289 + ... + 5335498.

It is an arithmetic number, because the mean of its divisors is an integer number (709540902).

Almost surely, 2^6455221135 is an apocalyptic number.

6455221135 is a deficient number, since it is larger than the sum of its proper divisors (2059269689).

6455221135 is a wasteful number, since it uses less digits than its factorization.

6455221135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10669814 (or 10669803 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 6455221135 is about 80344.3908123025. The cubic root of 6455221135 is about 1861.9601195443.

The spelling of 6455221135 in words is "six billion, four hundred fifty-five million, two hundred twenty-one thousand, one hundred thirty-five".