6504161078 has 4 divisors (see below), whose sum is σ = 9756241620. Its totient is φ = 3252080538.

The previous prime is 6504161063. The next prime is 6504161107. The reversal of 6504161078 is 8701614056.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×6504161078² = 84608222657140244168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1626040268 + ... + 1626040271.

It is an arithmetic number, because the mean of its divisors is an integer number (2439060405).

Almost surely, 2^6504161078 is an apocalyptic number.

6504161078 is a deficient number, since it is larger than the sum of its proper divisors (3252080542).

6504161078 is a wasteful number, since it uses less digits than its factorization.

6504161078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252080541.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 6504161078 is about 80648.3792645581. The cubic root of 6504161078 is about 1866.6537311533.

The spelling of 6504161078 in words is "six billion, five hundred four million, one hundred sixty-one thousand, seventy-eight".