85010665506 has 32 divisors (see below), whose sum is σ = 187565753088. Its totient is φ = 25519148160.

The previous prime is 85010665489. The next prime is 85010665517. The reversal of 85010665506 is 60556601058.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13288026 + ... + 13294421.

It is an arithmetic number, because the mean of its divisors is an integer number (5861429784).

Almost surely, 2^85010665506 is an apocalyptic number.

85010665506 is an abundant number, since it is smaller than the sum of its proper divisors (102555087582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85010665506 is a wasteful number, since it uses less digits than its factorization.

85010665506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26582506.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 85010665506 in words is "eighty-five billion, ten million, six hundred sixty-five thousand, five hundred six".