85199066 has 16 divisors (see below), whose sum is σ = 133069608. Its totient is φ = 40876800.

The previous prime is 85199063. The next prime is 85199083. The reversal of 85199066 is 66099158.

It can be written as a sum of positive squares in 4 ways, for example, as 15960025 + 69239041 = 3995^2 + 8321^2 .

It is not an unprimeable number, because it can be changed into a prime (85199063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3515 + ... + 13518.

Almost surely, 2^85199066 is an apocalyptic number.

85199066 is a deficient number, since it is larger than the sum of its proper divisors (47870542).

85199066 is a wasteful number, since it uses less digits than its factorization.

85199066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17137.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 85199066 is about 9230.3340134580. The cubic root of 85199066 is about 440.0259385535.

The spelling of 85199066 in words is "eighty-five million, one hundred ninety-nine thousand, sixty-six".