2027100661 has 2 divisors, whose sum is σ = 2027100662. Its totient is φ = 2027100660.

The previous prime is 2027100619. The next prime is 2027100703. The reversal of 2027100661 is 1660017202.

It is a balanced prime because it is at equal distance from previous prime (2027100619) and next prime (2027100703).

It can be written as a sum of positive squares in only one way, i.e., 2024460036 + 2640625 = 44994^2 + 1625^2 .

It is a cyclic number.

It is not a de Polignac number, because 2027100661 - 2¹⁵ = 2027067893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2027107661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013550330 + 1013550331.

It is an arithmetic number, because the mean of its divisors is an integer number (1013550331).

Almost surely, 2^2027100661 is an apocalyptic number.

It is an amenable number.

2027100661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2027100661 is an equidigital number, since it uses as much as digits as its factorization.

2027100661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2027100661 is about 45023.3346277239. The cubic root of 2027100661 is about 1265.5863198795.

Adding to 2027100661 its reverse (1660017202), we get a palindrome (3687117863).

The spelling of 2027100661 in words is "two billion, twenty-seven million, one hundred thousand, six hundred sixty-one".