118766705021 has 4 divisors (see below), whose sum is σ = 119422874844. Its totient is φ = 118110535200.

The previous prime is 118766705017. The next prime is 118766705041. The reversal of 118766705021 is 120507667811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52537682521 + 66229022500 = 229211^2 + 257350^2 .

It is a cyclic number.

It is not a de Polignac number, because 118766705021 - 2² = 118766705017 is a prime.

It is a super-2 number, since 2×118766705021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118766705041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328084640 + ... + 328085001.

It is an arithmetic number, because the mean of its divisors is an integer number (29855718711).

Almost surely, 2^118766705021 is an apocalyptic number.

It is an amenable number.

118766705021 is a deficient number, since it is larger than the sum of its proper divisors (656169823).

118766705021 is an equidigital number, since it uses as much as digits as its factorization.

118766705021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656169822.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 118766705021 in words is "one hundred eighteen billion, seven hundred sixty-six million, seven hundred five thousand, twenty-one".