80140666734 has 32 divisors (see below), whose sum is σ = 178105386240. Its totient is φ = 26711303256.

The previous prime is 80140666717. The next prime is 80140666763. The reversal of 80140666734 is 43766604108.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80140666734.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660487 + ... + 772349.

It is an arithmetic number, because the mean of its divisors is an integer number (5565793320).

Almost surely, 2^80140666734 is an apocalyptic number.

80140666734 is an abundant number, since it is smaller than the sum of its proper divisors (97964719506).

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

80140666734 is a wasteful number, since it uses less digits than its factorization.

80140666734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125141 (or 125135 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 80140666734 in words is "eighty billion, one hundred forty million, six hundred sixty-six thousand, seven hundred thirty-four".