80816156 has 12 divisors (see below), whose sum is σ = 146305320. Its totient is φ = 39014640.

The previous prime is 80816119. The next prime is 80816159. The reversal of 80816156 is 65161808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80816159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348230 + ... + 348461.

It is an arithmetic number, because the mean of its divisors is an integer number (12192110).

Almost surely, 2^80816156 is an apocalyptic number.

It is an amenable number.

80816156 is a deficient number, since it is larger than the sum of its proper divisors (65489164).

80816156 is a wasteful number, since it uses less digits than its factorization.

80816156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696724 (or 696722 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 80816156 is about 8989.7806424851. The cubic root of 80816156 is about 432.3472787659.

The spelling of 80816156 in words is "eighty million, eight hundred sixteen thousand, one hundred fifty-six".