90044571552 has 96 divisors (see below), whose sum is σ = 255243969792. Its totient is φ = 27630388224.

The previous prime is 90044571499. The next prime is 90044571557. The reversal of 90044571552 is 25517544009.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (90044571557) 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, 359718 + ... + 556314.

It is an arithmetic number, because the mean of its divisors is an integer number (2658791352).

Almost surely, 2^90044571552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90044571552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127621984896).

90044571552 is an abundant number, since it is smaller than the sum of its proper divisors (165199398240).

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

90044571552 is a wasteful number, since it uses less digits than its factorization.

90044571552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196990 (or 196982 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

It can be divided in two parts, 9004457 and 1552, that added together give a palindrome (9006009).

The spelling of 90044571552 in words is "ninety billion, forty-four million, five hundred seventy-one thousand, five hundred fifty-two".