80500405012 has 6 divisors (see below), whose sum is σ = 140875708778. Its totient is φ = 40250202504.

The previous prime is 80500404979. The next prime is 80500405081. The reversal of 80500405012 is 21050400508.

It can be written as a sum of positive squares in only one way, i.e., 67867544196 + 12632860816 = 260514^2 + 112396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062550623 + ... + 10062550630.

Almost surely, 2^80500405012 is an apocalyptic number.

It is an amenable number.

80500405012 is a deficient number, since it is larger than the sum of its proper divisors (60375303766).

80500405012 is a wasteful number, since it uses less digits than its factorization.

80500405012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20125101257 (or 20125101255 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 80500405012 in words is "eighty billion, five hundred million, four hundred five thousand, twelve".