19116442220 has 24 divisors (see below), whose sum is σ = 40188633408. Its totient is φ = 7638176000.

The previous prime is 19116442207. The next prime is 19116442231. The reversal of 19116442220 is 2224461191.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506381 + ... + 542820.

It is an arithmetic number, because the mean of its divisors is an integer number (1674526392).

Almost surely, 2^19116442220 is an apocalyptic number.

19116442220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19116442220 is an abundant number, since it is smaller than the sum of its proper divisors (21072191188).

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

19116442220 is a wasteful number, since it uses less digits than its factorization.

19116442220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050121 (or 1050119 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 19116442220 in words is "nineteen billion, one hundred sixteen million, four hundred forty-two thousand, two hundred twenty".