90219159552085 has 8 divisors (see below), whose sum is σ = 108320670211896. Its totient is φ = 72136875142080.

The previous prime is 90219159552043. The next prime is 90219159552101. The reversal of 90219159552085 is 58025595191209.

It can be written as a sum of positive squares in 4 ways, for example, as 20879864163601 + 69339295388484 = 4569449^2 + 8327022^2 .

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

It is not a de Polignac number, because 90219159552085 - 2¹⁹ = 90219159027797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4806552126 + ... + 4806570895.

It is an arithmetic number, because the mean of its divisors is an integer number (13540083776487).

Almost surely, 2^{90219159552085} is an apocalyptic number.

It is an amenable number.

90219159552085 is a deficient number, since it is larger than the sum of its proper divisors (18101510659811).

90219159552085 is a wasteful number, since it uses less digits than its factorization.

90219159552085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9613124903.

The product of its (nonzero) digits is 14580000, while the sum is 61.

The spelling of 90219159552085 in words is "ninety trillion, two hundred nineteen billion, one hundred fifty-nine million, five hundred fifty-two thousand, eighty-five".