80151855 has 64 divisors (see below), whose sum is σ = 157344768. Its totient is φ = 34007040.

The previous prime is 80151811. The next prime is 80151893. The reversal of 80151855 is 55815108.

It is not a de Polignac number, because 80151855 - 2⁶ = 80151791 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147885 + ... + 148425.

It is an arithmetic number, because the mean of its divisors is an integer number (2458512).

Almost surely, 2^80151855 is an apocalyptic number.

80151855 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

80151855 is a deficient number, since it is larger than the sum of its proper divisors (77192913).

80151855 is a wasteful number, since it uses less digits than its factorization.

80151855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656.

The product of its (nonzero) digits is 8000, while the sum is 33.

The square root of 80151855 is about 8952.7568379801. The cubic root of 80151855 is about 431.1594004173.

It can be divided in two parts, 8015 and 1855, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 80151855 in words is "eighty million, one hundred fifty-one thousand, eight hundred fifty-five".