1666002627 has 8 divisors (see below), whose sum is σ = 2468152080. Its totient is φ = 1110668400.

The previous prime is 1666002623. The next prime is 1666002673. The reversal of 1666002627 is 7262006661.

It is not a de Polignac number, because 1666002627 - 2² = 1666002623 is a prime.

It is a super-2 number, since 2×1666002627² = 5551129506341802258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1666002591 and 1666002600.

It is not an unprimeable number, because it can be changed into a prime (1666002623) 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, 30851874 + ... + 30851927.

It is an arithmetic number, because the mean of its divisors is an integer number (308519010).

Almost surely, 2^1666002627 is an apocalyptic number.

1666002627 is a deficient number, since it is larger than the sum of its proper divisors (802149453).

1666002627 is an equidigital number, since it uses as much as digits as its factorization.

1666002627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61703810 (or 61703804 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1666002627 is about 40816.6954443889. The cubic root of 1666002627 is about 1185.4736193637.

The spelling of 1666002627 in words is "one billion, six hundred sixty-six million, two thousand, six hundred twenty-seven".