6495544155 has 32 divisors (see below), whose sum is σ = 10944656640. Its totient is φ = 3280521600.

The previous prime is 6495544039. The next prime is 6495544157. The reversal of 6495544155 is 5514455946.

It is not a de Polignac number, because 6495544155 - 2¹² = 6495540059 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6495544157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1003680 + ... + 1010130.

It is an arithmetic number, because the mean of its divisors is an integer number (342020520).

Almost surely, 2^6495544155 is an apocalyptic number.

6495544155 is a deficient number, since it is larger than the sum of its proper divisors (4449112485).

6495544155 is a wasteful number, since it uses less digits than its factorization.

6495544155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011.

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

The square root of 6495544155 is about 80594.9387678904. The cubic root of 6495544155 is about 1865.8290324343.

The spelling of 6495544155 in words is "six billion, four hundred ninety-five million, five hundred forty-four thousand, one hundred fifty-five".