16577221060 has 24 divisors (see below), whose sum is σ = 35289046296. Its totient is φ = 6540053760.

The previous prime is 16577221013. The next prime is 16577221069. The reversal of 16577221060 is 6012277561.

It can be written as a sum of positive squares in 4 ways, for example, as 4677465664 + 11899755396 = 68392^2 + 109086^2 .

It is not an unprimeable number, because it can be changed into a prime (16577221069) 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, 5675671 + ... + 5678590.

It is an arithmetic number, because the mean of its divisors is an integer number (1470376929).

Almost surely, 2^16577221060 is an apocalyptic number.

16577221060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16577221060 is an abundant number, since it is smaller than the sum of its proper divisors (18711825236).

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

16577221060 is a wasteful number, since it uses less digits than its factorization.

16577221060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11354343 (or 11354341 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 16577221060 in words is "sixteen billion, five hundred seventy-seven million, two hundred twenty-one thousand, sixty".