1616220221156 has 24 divisors (see below), whose sum is σ = 2969586318720. Its totient is φ = 768598804512.

The previous prime is 1616220221129. The next prime is 1616220221179. The reversal of 1616220221156 is 6511220226161.

It is a super-2 number, since 2×1616220221156² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103969340 + ... + 103984883.

It is an arithmetic number, because the mean of its divisors is an integer number (123732763280).

Almost surely, 2^{1616220221156} is an apocalyptic number.

It is an amenable number.

1616220221156 is a deficient number, since it is larger than the sum of its proper divisors (1353366097564).

1616220221156 is a wasteful number, since it uses less digits than its factorization.

1616220221156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207954323 (or 207954321 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 1616220221156 in words is "one trillion, six hundred sixteen billion, two hundred twenty million, two hundred twenty-one thousand, one hundred fifty-six".