80401943605240 has 64 divisors (see below), whose sum is σ = 188210392104960. Its totient is φ = 30878267333760.

The previous prime is 80401943605177. The next prime is 80401943605241. The reversal of 80401943605240 is 4250634910408.

It is a super-3 number, since 3×80401943605240³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80401943605241) 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, 255119202 + ... + 255434161.

It is an arithmetic number, because the mean of its divisors is an integer number (2940787376640).

Almost surely, 2^{80401943605240} is an apocalyptic number.

It is an amenable number.

80401943605240 is an abundant number, since it is smaller than the sum of its proper divisors (107808448499720).

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

80401943605240 is a wasteful number, since it uses less digits than its factorization.

80401943605240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510553532 (or 510553528 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 80401943605240 in words is "eighty trillion, four hundred one billion, nine hundred forty-three million, six hundred five thousand, two hundred forty".