1662642105344 has 44 divisors (see below), whose sum is σ = 3625811519208. Its totient is φ = 755746406400.

The previous prime is 1662642105343. The next prime is 1662642105407. The reversal of 1662642105344 is 4435012462661.

It is a tau number, because it is divible by the number of its divisors (44).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 1662642105295 and 1662642105304.

It is not an unprimeable number, because it can be changed into a prime (1662642105343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73792097 + ... + 73814624.

Almost surely, 2^{1662642105344} is an apocalyptic number.

It is an amenable number.

1662642105344 is an abundant number, since it is smaller than the sum of its proper divisors (1963169413864).

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

1662642105344 is a wasteful number, since it uses less digits than its factorization.

1662642105344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147606752 (or 147606734 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 1662642105344 in words is "one trillion, six hundred sixty-two billion, six hundred forty-two million, one hundred five thousand, three hundred forty-four".