80653536 has 96 divisors (see below), whose sum is σ = 236789280. Its totient is φ = 26707968.

The previous prime is 80653513. The next prime is 80653543. The reversal of 80653536 is 63535608.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80653536.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239160 + ... + 239496.

It is an arithmetic number, because the mean of its divisors is an integer number (2466555).

Almost surely, 2^80653536 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 80653536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118394640).

80653536 is an abundant number, since it is smaller than the sum of its proper divisors (156135744).

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

80653536 is a wasteful number, since it uses less digits than its factorization.

80653536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 80653536 is about 8980.7313733348. The cubic root of 80653536 is about 432.0570912202.

The spelling of 80653536 in words is "eighty million, six hundred fifty-three thousand, five hundred thirty-six".