85355502072 has 16 divisors (see below), whose sum is σ = 213388755240. Its totient is φ = 28451834016.

The previous prime is 85355502059. The next prime is 85355502073. The reversal of 85355502072 is 27020555358.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85355502073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778239603 + ... + 1778239650.

Almost surely, 2^85355502072 is an apocalyptic number.

It is an amenable number.

85355502072 is an abundant number, since it is smaller than the sum of its proper divisors (128033253168).

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

85355502072 is a wasteful number, since it uses less digits than its factorization.

85355502072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556479262 (or 3556479258 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 85355502072 in words is "eighty-five billion, three hundred fifty-five million, five hundred two thousand, seventy-two".