16220060164 has 81 divisors (see below), whose sum is σ = 36337999719. Its totient is φ = 6311862480.

The previous prime is 16220060159. The next prime is 16220060173. The reversal of 16220060164 is 46106002261.

The square root of 16220060164 is 127358.

It is a perfect power (a square), and thus also a powerful number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 19612719 + ... + 19613545.

Almost surely, 2^16220060164 is an apocalyptic number.

16220060164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16220060164 is the 127358-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16220060164

16220060164 is an abundant number, since it is smaller than the sum of its proper divisors (20117939555).

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

16220060164 is an equidigital number, since it uses as much as digits as its factorization.

16220060164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 16220060164 in words is "sixteen billion, two hundred twenty million, sixty thousand, one hundred sixty-four".