166007951101 has 2 divisors, whose sum is σ = 166007951102. Its totient is φ = 166007951100.

The previous prime is 166007951089. The next prime is 166007951119. The reversal of 166007951101 is 101159700661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148880994201 + 17126956900 = 385851^2 + 130870^2 .

It is a cyclic number.

It is not a de Polignac number, because 166007951101 - 2⁷ = 166007950973 is a prime.

It is a super-2 number, since 2×166007951101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166007931101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83003975550 + 83003975551.

It is an arithmetic number, because the mean of its divisors is an integer number (83003975551).

Almost surely, 2^166007951101 is an apocalyptic number.

It is an amenable number.

166007951101 is a deficient number, since it is larger than the sum of its proper divisors (1).

166007951101 is an equidigital number, since it uses as much as digits as its factorization.

166007951101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 37.

The spelling of 166007951101 in words is "one hundred sixty-six billion, seven million, nine hundred fifty-one thousand, one hundred one".