7066278420 has 48 divisors (see below), whose sum is σ = 19899976320. Its totient is φ = 1873446016.

The previous prime is 7066278367. The next prime is 7066278421. The reversal of 7066278420 is 248726607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7066278421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330000 + ... + 350759.

It is an arithmetic number, because the mean of its divisors is an integer number (414582840).

Almost surely, 2^7066278420 is an apocalyptic number.

It is an amenable number.

7066278420 is an abundant number, since it is smaller than the sum of its proper divisors (12833697900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7066278420 is a wasteful number, since it uses less digits than its factorization.

7066278420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680944 (or 680942 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 7066278420 is about 84061.1588071447. The cubic root of 7066278420 is about 1918.9496588027.

The spelling of 7066278420 in words is "seven billion, sixty-six million, two hundred seventy-eight thousand, four hundred twenty".