131966208061 has 2 divisors, whose sum is σ = 131966208062. Its totient is φ = 131966208060.

The previous prime is 131966207993. The next prime is 131966208097. The reversal of 131966208061 is 160802669131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96044208100 + 35921999961 = 309910^2 + 189531^2 .

It is a cyclic number.

It is not a de Polignac number, because 131966208061 - 2¹⁵ = 131966175293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131966207999 and 131966208017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131966208761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65983104030 + 65983104031.

It is an arithmetic number, because the mean of its divisors is an integer number (65983104031).

Almost surely, 2^131966208061 is an apocalyptic number.

It is an amenable number.

131966208061 is a deficient number, since it is larger than the sum of its proper divisors (1).

131966208061 is an equidigital number, since it uses as much as digits as its factorization.

131966208061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 131966208061 in words is "one hundred thirty-one billion, nine hundred sixty-six million, two hundred eight thousand, sixty-one".