990060820323 has 32 divisors (see below), whose sum is σ = 1386197756160. Its totient is φ = 627671721600.

The previous prime is 990060820249. The next prime is 990060820337. The reversal of 990060820323 is 323028060099.

990060820323 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 995018²-1.

It is not a de Polignac number, because 990060820323 - 2¹⁴ = 990060803939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (990060840323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66658848 + ... + 66673698.

It is an arithmetic number, because the mean of its divisors is an integer number (43318679880).

Almost surely, 2^990060820323 is an apocalyptic number.

990060820323 is a deficient number, since it is larger than the sum of its proper divisors (396136935837).

990060820323 is a wasteful number, since it uses less digits than its factorization.

990060820323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26387.

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 990060820323 in words is "nine hundred ninety billion, sixty million, eight hundred twenty thousand, three hundred twenty-three".