78080955615 has 112 divisors (see below), whose sum is σ = 153118177632. Its totient is φ = 37974811392.

The previous prime is 78080955583. The next prime is 78080955619. The reversal of 78080955615 is 51655908087.

78080955615 is a `hidden beast` number, since 7 + 8 + 0 + 80 + 9 + 556 + 1 + 5 = 666.

It is not a de Polignac number, because 78080955615 - 2⁵ = 78080955583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78080955619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 3923029 + ... + 3942881.

It is an arithmetic number, because the mean of its divisors is an integer number (1367126586).

Almost surely, 2^78080955615 is an apocalyptic number.

78080955615 is a deficient number, since it is larger than the sum of its proper divisors (75037222017).

78080955615 is a wasteful number, since it uses less digits than its factorization.

78080955615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19972 (or 19957 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 54.

The spelling of 78080955615 in words is "seventy-eight billion, eighty million, nine hundred fifty-five thousand, six hundred fifteen".