80757660 has 48 divisors (see below), whose sum is σ = 227588256. Its totient is φ = 21395712.

The previous prime is 80757647. The next prime is 80757673. The reversal of 80757660 is 6675708.

It is an interprime number because it is at equal distance from previous prime (80757647) and next prime (80757673).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5134 + ... + 13706.

It is an arithmetic number, because the mean of its divisors is an integer number (4741422).

Almost surely, 2^80757660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80757660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113794128).

80757660 is an abundant number, since it is smaller than the sum of its proper divisors (146830596).

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

80757660 is a wasteful number, since it uses less digits than its factorization.

80757660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8742 (or 8740 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 80757660 is about 8986.5265814997. The cubic root of 80757660 is about 432.2429403430.

The spelling of 80757660 in words is "eighty million, seven hundred fifty-seven thousand, six hundred sixty".