80416042541 has 4 divisors (see below), whose sum is σ = 81212241084. Its totient is φ = 79619844000.

The previous prime is 80416042517. The next prime is 80416042543. The reversal of 80416042541 is 14524061408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78972802441 + 1443240100 = 281021^2 + 37990^2 .

It is a cyclic number.

It is not a de Polignac number, because 80416042541 - 2⁶ = 80416042477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80416042543) 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, 398099120 + ... + 398099321.

It is an arithmetic number, because the mean of its divisors is an integer number (20303060271).

Almost surely, 2^80416042541 is an apocalyptic number.

It is an amenable number.

80416042541 is a deficient number, since it is larger than the sum of its proper divisors (796198543).

80416042541 is a wasteful number, since it uses less digits than its factorization.

80416042541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796198542.

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 80416042541 in words is "eighty billion, four hundred sixteen million, forty-two thousand, five hundred forty-one".