85145042901 has 16 divisors (see below), whose sum is σ = 118752347520. Its totient is φ = 54162620160.

The previous prime is 85145042839. The next prime is 85145042921. The reversal of 85145042901 is 10924054158.

It is a de Polignac number, because none of the positive numbers 2^k-85145042901 is a prime.

It is a super-2 number, since 2×85145042901² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85145042901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85145042921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1480320 + ... + 1536761.

It is an arithmetic number, because the mean of its divisors is an integer number (7422021720).

Almost surely, 2^85145042901 is an apocalyptic number.

It is an amenable number.

85145042901 is a deficient number, since it is larger than the sum of its proper divisors (33607304619).

85145042901 is a wasteful number, since it uses less digits than its factorization.

85145042901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017516.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 85145042901 in words is "eighty-five billion, one hundred forty-five million, forty-two thousand, nine hundred one".