1006166501 has 2 divisors, whose sum is σ = 1006166502. Its totient is φ = 1006166500.

The previous prime is 1006166477. The next prime is 1006166509. The reversal of 1006166501 is 1056616001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522122500 + 484044001 = 22850^2 + 22001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1006166501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1006166509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503083250 + 503083251.

It is an arithmetic number, because the mean of its divisors is an integer number (503083251).

Almost surely, 2^1006166501 is an apocalyptic number.

It is an amenable number.

1006166501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006166501 is an equidigital number, since it uses as much as digits as its factorization.

1006166501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1006166501 is about 31720.1276952032. The cubic root of 1006166501 is about 1002.0512896669.

The spelling of 1006166501 in words is "one billion, six million, one hundred sixty-six thousand, five hundred one".