90668068085 has 8 divisors (see below), whose sum is σ = 124344779136. Its totient is φ = 62172389520.

The previous prime is 90668068081. The next prime is 90668068097. The reversal of 90668068085 is 58086086609.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90668068085 - 2² = 90668068081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90668068085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90668068081) 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, 1295258081 + ... + 1295258150.

It is an arithmetic number, because the mean of its divisors is an integer number (15543097392).

Almost surely, 2^90668068085 is an apocalyptic number.

It is an amenable number.

90668068085 is a deficient number, since it is larger than the sum of its proper divisors (33676711051).

90668068085 is a wasteful number, since it uses less digits than its factorization.

90668068085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590516243.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 90668068085 in words is "ninety billion, six hundred sixty-eight million, sixty-eight thousand, eighty-five".