8021662125 has 32 divisors (see below), whose sum is σ = 13574321280. Its totient is φ = 4205696000.

The previous prime is 8021662111. The next prime is 8021662127. The reversal of 8021662125 is 5212661208.

It is not a de Polignac number, because 8021662125 - 2¹⁴ = 8021645741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8021662127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159156 + ... + 203405.

It is an arithmetic number, because the mean of its divisors is an integer number (424197540).

Almost surely, 2^8021662125 is an apocalyptic number.

It is an amenable number.

8021662125 is a deficient number, since it is larger than the sum of its proper divisors (5552659155).

8021662125 is a wasteful number, since it uses less digits than its factorization.

8021662125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362638 (or 362628 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 8021662125 is about 89563.7321966877. The cubic root of 8021662125 is about 2001.8035501978.

The spelling of 8021662125 in words is "eight billion, twenty-one million, six hundred sixty-two thousand, one hundred twenty-five".