80525557611 has 12 divisors (see below), whose sum is σ = 116323973688. Its totient is φ = 53679422304.

The previous prime is 80525557601. The next prime is 80525557657. The reversal of 80525557611 is 11675552508.

80525557611 is a `hidden beast` number, since 8 + 0 + 5 + 25 + 5 + 5 + 7 + 611 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-80525557611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80525557601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235650 + ... + 465383.

It is an arithmetic number, because the mean of its divisors is an integer number (9693664474).

Almost surely, 2^80525557611 is an apocalyptic number.

80525557611 is a deficient number, since it is larger than the sum of its proper divisors (35798416077).

80525557611 is a wasteful number, since it uses less digits than its factorization.

80525557611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713802 (or 713799 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 45.

The spelling of 80525557611 in words is "eighty billion, five hundred twenty-five million, five hundred fifty-seven thousand, six hundred eleven".