118606547421 has 12 divisors (see below), whose sum is σ = 171453494940. Its totient is φ = 79009680960.

The previous prime is 118606547417. The next prime is 118606547441. The reversal of 118606547421 is 124745606811.

118606547421 is a `hidden beast` number, since 1 + 1 + 8 + 60 + 6 + 547 + 42 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 75371662521 + 43234884900 = 274539^2 + 207930^2 .

It is not a de Polignac number, because 118606547421 - 2² = 118606547417 is a prime.

It is a super-2 number, since 2×118606547421² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118606547441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5100310 + ... + 5123511.

It is an arithmetic number, because the mean of its divisors is an integer number (14287791245).

Almost surely, 2^118606547421 is an apocalyptic number.

It is an amenable number.

118606547421 is a deficient number, since it is larger than the sum of its proper divisors (52846947519).

118606547421 is a wasteful number, since it uses less digits than its factorization.

118606547421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10225116 (or 10225113 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 118606547421 in words is "one hundred eighteen billion, six hundred six million, five hundred forty-seven thousand, four hundred twenty-one".