1722221146160 has 40 divisors (see below), whose sum is σ = 4013082208800. Its totient is φ = 687354171392.

The previous prime is 1722221146111. The next prime is 1722221146201. The reversal of 1722221146160 is 616411222271.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1722221146160.

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, 23937092 + ... + 24008931.

It is an arithmetic number, because the mean of its divisors is an integer number (100327055220).

Almost surely, 2^{1722221146160} is an apocalyptic number.

1722221146160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1722221146160 is an abundant number, since it is smaller than the sum of its proper divisors (2290861062640).

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

1722221146160 is a wasteful number, since it uses less digits than its factorization.

1722221146160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47946485 (or 47946479 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 1722221146160 in words is "one trillion, seven hundred twenty-two billion, two hundred twenty-one million, one hundred forty-six thousand, one hundred sixty".