10649566709220 has 48 divisors (see below), whose sum is σ = 29970151219008. Its totient is φ = 2825468795520.

The previous prime is 10649566709191. The next prime is 10649566709233. The reversal of 10649566709220 is 2290766594601.

It is a super-2 number, since 2×10649566709220² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450477466 + ... + 450501105.

It is an arithmetic number, because the mean of its divisors is an integer number (624378150396).

Almost surely, 2^{10649566709220} is an apocalyptic number.

10649566709220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10649566709220 is an abundant number, since it is smaller than the sum of its proper divisors (19320584509788).

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

10649566709220 is a wasteful number, since it uses less digits than its factorization.

10649566709220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900978780 (or 900978778 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 10649566709220 in words is "ten trillion, six hundred forty-nine billion, five hundred sixty-six million, seven hundred nine thousand, two hundred twenty".