6501473655 has 16 divisors (see below), whose sum is σ = 10403973504. Its totient is φ = 3466914080.

The previous prime is 6501473651. The next prime is 6501473681. The reversal of 6501473655 is 5563741056.

It is not a de Polignac number, because 6501473655 - 2² = 6501473651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501473651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78112 + ... + 138218.

It is an arithmetic number, because the mean of its divisors is an integer number (650248344).

Almost surely, 2^6501473655 is an apocalyptic number.

6501473655 is a deficient number, since it is larger than the sum of its proper divisors (3902499849).

6501473655 is a wasteful number, since it uses less digits than its factorization.

6501473655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67326.

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 6501473655 is about 80631.7161853820. The cubic root of 6501473655 is about 1866.3966045138.

The spelling of 6501473655 in words is "six billion, five hundred one million, four hundred seventy-three thousand, six hundred fifty-five".