86166550 has 24 divisors (see below), whose sum is σ = 162991800. Its totient is φ = 33881280.

The previous prime is 86166547. The next prime is 86166559. The reversal of 86166550 is 5566168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86166559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11655 + ... + 17554.

It is an arithmetic number, because the mean of its divisors is an integer number (6791325).

Almost surely, 2^86166550 is an apocalyptic number.

86166550 is a deficient number, since it is larger than the sum of its proper divisors (76825250).

86166550 is a wasteful number, since it uses less digits than its factorization.

86166550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29280 (or 29275 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 86166550 is about 9282.5939262687. The cubic root of 86166550 is about 441.6852553388.

The spelling of 86166550 in words is "eighty-six million, one hundred sixty-six thousand, five hundred fifty".