10646448990 has 16 divisors (see below), whose sum is σ = 25551477648. Its totient is φ = 2839053056.

The previous prime is 10646448979. The next prime is 10646448997. The reversal of 10646448990 is 9984464601.

It is a super-2 number, since 2×10646448990² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10646448997) 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, 177440787 + ... + 177440846.

It is an arithmetic number, because the mean of its divisors is an integer number (1596967353).

Almost surely, 2^10646448990 is an apocalyptic number.

10646448990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10646448990 is an abundant number, since it is smaller than the sum of its proper divisors (14905028658).

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

10646448990 is a wasteful number, since it uses less digits than its factorization.

10646448990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354881643.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 10646448990 in words is "ten billion, six hundred forty-six million, four hundred forty-eight thousand, nine hundred ninety".