1026666101 has 2 divisors, whose sum is σ = 1026666102. Its totient is φ = 1026666100.

The previous prime is 1026666097. The next prime is 1026666161. The reversal of 1026666101 is 1016666201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 966588100 + 60078001 = 31090^2 + 7751^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026666101 - 2² = 1026666097 is a prime.

It is a super-4 number, since 4×1026666101⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1026666161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513333050 + 513333051.

It is an arithmetic number, because the mean of its divisors is an integer number (513333051).

Almost surely, 2^1026666101 is an apocalyptic number.

It is an amenable number.

1026666101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026666101 is an equidigital number, since it uses as much as digits as its factorization.

1026666101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1026666101 is about 32041.6307481376. The cubic root of 1026666101 is about 1008.8108414091.

It can be divided in two parts, 10266 and 66101, that added together give a palindrome (76367).

The spelling of 1026666101 in words is "one billion, twenty-six million, six hundred sixty-six thousand, one hundred one".