80190656 has 112 divisors (see below), whose sum is σ = 200558400. Its totient is φ = 31610880.

The previous prime is 80190653. The next prime is 80190703. The reversal of 80190656 is 65609108.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (80190653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285236 + ... + 285516.

It is an arithmetic number, because the mean of its divisors is an integer number (1790700).

Almost surely, 2^80190656 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 80190656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100279200).

80190656 is an abundant number, since it is smaller than the sum of its proper divisors (120367744).

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

80190656 is a wasteful number, since it uses less digits than its factorization.

80190656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 80190656 is about 8954.9235619295. The cubic root of 80190656 is about 431.2289630290.

The spelling of 80190656 in words is "eighty million, one hundred ninety thousand, six hundred fifty-six".