16640655320210 has 32 divisors (see below), whose sum is σ = 30921396751872. Its totient is φ = 6441130333440.

The previous prime is 16640655320209. The next prime is 16640655320297. The reversal of 16640655320210 is 1202355604661.

It is a happy number.

It is a super-2 number, since 2×16640655320210² (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, 3133562 + ... + 6565098.

It is an arithmetic number, because the mean of its divisors is an integer number (966293648496).

Almost surely, 2^{16640655320210} is an apocalyptic number.

16640655320210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16640655320210 is a deficient number, since it is larger than the sum of its proper divisors (14280741431662).

16640655320210 is a wasteful number, since it uses less digits than its factorization.

16640655320210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447218.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 16640655320210 in words is "sixteen trillion, six hundred forty billion, six hundred fifty-five million, three hundred twenty thousand, two hundred ten".