118640541402 has 40 divisors (see below), whose sum is σ = 265886138100. Its totient is φ = 39540384576.

The previous prime is 118640541401. The next prime is 118640541431. The reversal of 118640541402 is 204145046811.

118640541402 is a `hidden beast` number, since 1 + 1 + 8 + 640 + 5 + 4 + 1 + 4 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 117204207201 + 1436334201 = 342351^2 + 37899^2 .

It is a super-2 number, since 2×118640541402² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118640541401) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 991374 + ... + 1104582.

Almost surely, 2^118640541402 is an apocalyptic number.

118640541402 is an abundant number, since it is smaller than the sum of its proper divisors (147245596698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118640541402 is a wasteful number, since it uses less digits than its factorization.

118640541402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119692 (or 119683 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 118640541402 in words is "one hundred eighteen billion, six hundred forty million, five hundred forty-one thousand, four hundred two".