80936665143 has 12 divisors (see below), whose sum is σ = 112811535480. Its totient is φ = 51611785456.

The previous prime is 80936665133. The next prime is 80936665153. The reversal of 80936665143 is 34156663908.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80936665133) and next prime (80936665153).

It is not a de Polignac number, because 80936665143 - 2⁶ = 80936665079 is a prime.

It is a super-2 number, since 2×80936665143² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80936665133) 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, 25498308 + ... + 25501481.

It is an arithmetic number, because the mean of its divisors is an integer number (9400961290).

Almost surely, 2^80936665143 is an apocalyptic number.

80936665143 is a deficient number, since it is larger than the sum of its proper divisors (31874870337).

80936665143 is a wasteful number, since it uses less digits than its factorization.

80936665143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50999838 (or 50999815 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 80936665143 in words is "eighty billion, nine hundred thirty-six million, six hundred sixty-five thousand, one hundred forty-three".