200091510072661 has 2 divisors, whose sum is σ = 200091510072662. Its totient is φ = 200091510072660.

The previous prime is 200091510072563. The next prime is 200091510072667. The reversal of 200091510072661 is 166270015190002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178341468347025 + 21750041725636 = 13354455^2 + 4663694^2 .

It is a cyclic number.

It is not a de Polignac number, because 200091510072661 - 2³⁷ = 199954071119189 is a prime.

It is a super-2 number, since 2×200091510072661² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200091510072667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100045755036330 + 100045755036331.

It is an arithmetic number, because the mean of its divisors is an integer number (100045755036331).

Almost surely, 2^{200091510072661} is an apocalyptic number.

It is an amenable number.

200091510072661 is a deficient number, since it is larger than the sum of its proper divisors (1).

200091510072661 is an equidigital number, since it uses as much as digits as its factorization.

200091510072661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 200091510072661 in words is "two hundred trillion, ninety-one billion, five hundred ten million, seventy-two thousand, six hundred sixty-one".