80738756655 has 32 divisors (see below), whose sum is σ = 136146685440. Its totient is φ = 40744632960.

The previous prime is 80738756641. The next prime is 80738756669. The reversal of 80738756655 is 55665783708.

It is an interprime number because it is at equal distance from previous prime (80738756641) and next prime (80738756669).

It is not a de Polignac number, because 80738756655 - 2⁴ = 80738756639 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 62445 + ... + 406665.

It is an arithmetic number, because the mean of its divisors is an integer number (4254583920).

Almost surely, 2^80738756655 is an apocalyptic number.

80738756655 is a deficient number, since it is larger than the sum of its proper divisors (55407928785).

80738756655 is a wasteful number, since it uses less digits than its factorization.

80738756655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345071.

The product of its (nonzero) digits is 42336000, while the sum is 60.

The spelling of 80738756655 in words is "eighty billion, seven hundred thirty-eight million, seven hundred fifty-six thousand, six hundred fifty-five".