80265961936 has 80 divisors (see below), whose sum is σ = 166069906560. Its totient is φ = 37497208320.

The previous prime is 80265961921. The next prime is 80265961943. The reversal of 80265961936 is 63916956208.

It is a super-2 number, since 2×80265961936² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4457431 + ... + 4475401.

It is an arithmetic number, because the mean of its divisors is an integer number (2075873832).

Almost surely, 2^80265961936 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 80265961936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83034953280).

80265961936 is an abundant number, since it is smaller than the sum of its proper divisors (85803944624).

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

80265961936 is a wasteful number, since it uses less digits than its factorization.

80265961936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18284 (or 18278 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 80265961936 in words is "eighty billion, two hundred sixty-five million, nine hundred sixty-one thousand, nine hundred thirty-six".