80203400061 has 32 divisors (see below), whose sum is σ = 108676838400. Its totient is φ = 52607245824.

The previous prime is 80203400059. The next prime is 80203400083. The reversal of 80203400061 is 16000430208.

It is a happy number.

It is not a de Polignac number, because 80203400061 - 2¹ = 80203400059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80203400021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47205390 + ... + 47207088.

It is an arithmetic number, because the mean of its divisors is an integer number (3396151200).

Almost surely, 2^80203400061 is an apocalyptic number.

It is an amenable number.

80203400061 is a deficient number, since it is larger than the sum of its proper divisors (28473438339).

80203400061 is a wasteful number, since it uses less digits than its factorization.

80203400061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 80203400061 its reverse (16000430208), we get a palindrome (96203830269).

The spelling of 80203400061 in words is "eighty billion, two hundred three million, four hundred thousand, sixty-one".