80726605011 has 36 divisors (see below), whose sum is σ = 126629392968. Its totient is φ = 49534422912.

The previous prime is 80726605009. The next prime is 80726605013. The reversal of 80726605011 is 11050662708.

80726605011 is a `hidden beast` number, since 80 + 72 + 6 + 6 + 0 + 501 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (80726605009) and next prime (80726605013).

It is not a de Polignac number, because 80726605011 - 2¹ = 80726605009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80726605013) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 451311 + ... + 604263.

It is an arithmetic number, because the mean of its divisors is an integer number (3517483138).

Almost surely, 2^80726605011 is an apocalyptic number.

80726605011 is a deficient number, since it is larger than the sum of its proper divisors (45902787957).

80726605011 is a wasteful number, since it uses less digits than its factorization.

80726605011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153332 (or 153316 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 80726605011 in words is "eighty billion, seven hundred twenty-six million, six hundred five thousand, eleven".