85051605406 has 32 divisors (see below), whose sum is σ = 134219760480. Its totient is φ = 40377977856.

The previous prime is 85051605311. The next prime is 85051605407. The reversal of 85051605406 is 60450615058.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85051605407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527046 + ... + 669238.

It is an arithmetic number, because the mean of its divisors is an integer number (4194367515).

Almost surely, 2^85051605406 is an apocalyptic number.

85051605406 is a deficient number, since it is larger than the sum of its proper divisors (49168155074).

85051605406 is a wasteful number, since it uses less digits than its factorization.

85051605406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142428.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 85051605406 in words is "eighty-five billion, fifty-one million, six hundred five thousand, four hundred six".