118877760181 has 2 divisors, whose sum is σ = 118877760182. Its totient is φ = 118877760180.

The previous prime is 118877760151. The next prime is 118877760203. The reversal of 118877760181 is 181067778811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113451080625 + 5426679556 = 336825^2 + 73666^2 .

It is a cyclic number.

It is not a de Polignac number, because 118877760181 - 2¹³ = 118877751989 is a prime.

It is a super-2 number, since 2×118877760181² (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 (118877760101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59438880090 + 59438880091.

It is an arithmetic number, because the mean of its divisors is an integer number (59438880091).

Almost surely, 2^118877760181 is an apocalyptic number.

It is an amenable number.

118877760181 is a deficient number, since it is larger than the sum of its proper divisors (1).

118877760181 is an equidigital number, since it uses as much as digits as its factorization.

118877760181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1053696, while the sum is 55.

The spelling of 118877760181 in words is "one hundred eighteen billion, eight hundred seventy-seven million, seven hundred sixty thousand, one hundred eighty-one".