1662345102113 has 4 divisors (see below), whose sum is σ = 1662360843588. Its totient is φ = 1662329360640.

The previous prime is 1662345102107. The next prime is 1662345102127. The reversal of 1662345102113 is 3112015432661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3019832209 + 1659325269904 = 54953^2 + 1288148^2 .

It is a cyclic number.

It is not a de Polignac number, because 1662345102113 - 2²² = 1662340907809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1662345102133) 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, 7711256 + ... + 7923897.

It is an arithmetic number, because the mean of its divisors is an integer number (415590210897).

Almost surely, 2^{1662345102113} is an apocalyptic number.

It is an amenable number.

1662345102113 is a deficient number, since it is larger than the sum of its proper divisors (15741475).

1662345102113 is a wasteful number, since it uses less digits than its factorization.

1662345102113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15741474.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 1662345102113 in words is "one trillion, six hundred sixty-two billion, three hundred forty-five million, one hundred two thousand, one hundred thirteen".