118651306545 has 40 divisors (see below), whose sum is σ = 213224152680. Its totient is φ = 63122803200.

The previous prime is 118651306507. The next prime is 118651306561. The reversal of 118651306545 is 545603156811.

It is a happy number.

118651306545 is a `hidden beast` number, since 1 + 1 + 86 + 513 + 0 + 6 + 54 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 35286871104 + 83364435441 = 187848^2 + 288729^2 .

It is not a de Polignac number, because 118651306545 - 2¹² = 118651302449 is a prime.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 118651306545.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 202890 + ... + 527699.

It is an arithmetic number, because the mean of its divisors is an integer number (5330603817).

Almost surely, 2^118651306545 is an apocalyptic number.

118651306545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118651306545 is a deficient number, since it is larger than the sum of its proper divisors (94572846135).

118651306545 is an equidigital number, since it uses as much as digits as its factorization.

118651306545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731007 (or 730998 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The spelling of 118651306545 in words is "one hundred eighteen billion, six hundred fifty-one million, three hundred six thousand, five hundred forty-five".