80121662135 has 16 divisors (see below), whose sum is σ = 96735854016. Its totient is φ = 63704352768.

The previous prime is 80121662123. The next prime is 80121662141. The reversal of 80121662135 is 53126612108.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80121662135 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80121662095 and 80121662104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2698742 + ... + 2728268.

It is an arithmetic number, because the mean of its divisors is an integer number (6045990876).

Almost surely, 2^80121662135 is an apocalyptic number.

80121662135 is a deficient number, since it is larger than the sum of its proper divisors (16614191881).

80121662135 is a wasteful number, since it uses less digits than its factorization.

80121662135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32842.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 80121662135 in words is "eighty billion, one hundred twenty-one million, six hundred sixty-two thousand, one hundred thirty-five".