6548420071 has 4 divisors (see below), whose sum is σ = 6646157752. Its totient is φ = 6450682392.

The previous prime is 6548420059. The next prime is 6548420093. The reversal of 6548420071 is 1700248456.

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

It is a cyclic number.

It is not a de Polignac number, because 6548420071 - 2¹⁵ = 6548387303 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 6548420071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6548420051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48868740 + ... + 48868873.

It is an arithmetic number, because the mean of its divisors is an integer number (1661539438).

Almost surely, 2^6548420071 is an apocalyptic number.

6548420071 is a deficient number, since it is larger than the sum of its proper divisors (97737681).

6548420071 is an equidigital number, since it uses as much as digits as its factorization.

6548420071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97737680.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 6548420071 is about 80922.3088585589. The cubic root of 6548420071 is about 1870.8781819965.

The spelling of 6548420071 in words is "six billion, five hundred forty-eight million, four hundred twenty thousand, seventy-one".