990666042510 has 16 divisors (see below), whose sum is σ = 2377598502096. Its totient is φ = 264177611328.

The previous prime is 990666042491. The next prime is 990666042511. The reversal of 990666042510 is 15240666099.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 990666042510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990666042511) 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, 16511100679 + ... + 16511100738.

It is an arithmetic number, because the mean of its divisors is an integer number (148599906381).

Almost surely, 2^990666042510 is an apocalyptic number.

990666042510 is an abundant number, since it is smaller than the sum of its proper divisors (1386932459586).

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

990666042510 is a wasteful number, since it uses less digits than its factorization.

990666042510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33022201427.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 990666042510 in words is "nine hundred ninety billion, six hundred sixty-six million, forty-two thousand, five hundred ten".