80751665272 has 16 divisors (see below), whose sum is σ = 154930521240. Its totient is φ = 39436859616.

The previous prime is 80751665219. The next prime is 80751665273. The reversal of 80751665272 is 27256615708.

It is a happy number.

It is a super-2 number, since 2×80751665272² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80751665273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117371263 + ... + 117371950.

Almost surely, 2^80751665272 is an apocalyptic number.

It is an amenable number.

80751665272 is a deficient number, since it is larger than the sum of its proper divisors (74178855968).

80751665272 is a wasteful number, since it uses less digits than its factorization.

80751665272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234743262 (or 234743258 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 80751665272 in words is "eighty billion, seven hundred fifty-one million, six hundred sixty-five thousand, two hundred seventy-two".