80139663 has 12 divisors (see below), whose sum is σ = 121850040. Its totient is φ = 50614416.

The previous prime is 80139629. The next prime is 80139671. The reversal of 80139663 is 36693108.

It is a happy number.

It is not a de Polignac number, because 80139663 - 2⁶ = 80139599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80139263) 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, 234156 + ... + 234497.

It is an arithmetic number, because the mean of its divisors is an integer number (10154170).

Almost surely, 2^80139663 is an apocalyptic number.

80139663 is a deficient number, since it is larger than the sum of its proper divisors (41710377).

80139663 is a wasteful number, since it uses less digits than its factorization.

80139663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468678 (or 468675 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 80139663 is about 8952.0759045039. The cubic root of 80139663 is about 431.1375379083.

The spelling of 80139663 in words is "eighty million, one hundred thirty-nine thousand, six hundred sixty-three".