6668125477 has 8 divisors (see below), whose sum is σ = 7493278464. Its totient is φ = 5887575408.

The previous prime is 6668125439. The next prime is 6668125501. The reversal of 6668125477 is 7745218666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6668125477 - 2²³ = 6659736869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668122477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11150413 + ... + 11151010.

It is an arithmetic number, because the mean of its divisors is an integer number (936659808).

Almost surely, 2^6668125477 is an apocalyptic number.

It is an amenable number.

6668125477 is a deficient number, since it is larger than the sum of its proper divisors (825152987).

6668125477 is a wasteful number, since it uses less digits than its factorization.

6668125477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22301459.

The product of its digits is 3386880, while the sum is 52.

The square root of 6668125477 is about 81658.5909564940. The cubic root of 6668125477 is about 1882.2093270583.

The spelling of 6668125477 in words is "six billion, six hundred sixty-eight million, one hundred twenty-five thousand, four hundred seventy-seven".