6441355156215 has 32 divisors (see below), whose sum is σ = 11778757562880. Its totient is φ = 2944549609344.

The previous prime is 6441355156163. The next prime is 6441355156237. The reversal of 6441355156215 is 5126515531446.

It is not a de Polignac number, because 6441355156215 - 2⁷ = 6441355156087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3853521 + ... + 5266149.

It is an arithmetic number, because the mean of its divisors is an integer number (368086173840).

Almost surely, 2^{6441355156215} is an apocalyptic number.

6441355156215 is a deficient number, since it is larger than the sum of its proper divisors (5337402406665).

6441355156215 is a wasteful number, since it uses less digits than its factorization.

6441355156215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456071.

The product of its digits is 2160000, while the sum is 48.

The spelling of 6441355156215 in words is "six trillion, four hundred forty-one billion, three hundred fifty-five million, one hundred fifty-six thousand, two hundred fifteen".