80702440355 has 4 divisors (see below), whose sum is σ = 96842928432. Its totient is φ = 64561952280.

The previous prime is 80702440339. The next prime is 80702440367. The reversal of 80702440355 is 55304420708.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80702440355 - 2⁴ = 80702440339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8070244031 + ... + 8070244040.

It is an arithmetic number, because the mean of its divisors is an integer number (24210732108).

Almost surely, 2^80702440355 is an apocalyptic number.

80702440355 is a deficient number, since it is larger than the sum of its proper divisors (16140488077).

80702440355 is a wasteful number, since it uses less digits than its factorization.

80702440355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140488076.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 80702440355 in words is "eighty billion, seven hundred two million, four hundred forty thousand, three hundred fifty-five".