1662345102105 has 32 divisors (see below), whose sum is σ = 2962105413120. Its totient is φ = 884536485120.

The previous prime is 1662345102053. The next prime is 1662345102107. The reversal of 1662345102105 is 5012015432661.

1662345102105 is a `hidden beast` number, since 1 + 6 + 6 + 2 + 34 + 510 + 2 + 105 = 666.

It is not a de Polignac number, because 1662345102105 - 2¹⁷ = 1662344971033 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1662345102105.

It is not an unprimeable number, because it can be changed into a prime (1662345102107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14160561 + ... + 14277470.

It is an arithmetic number, because the mean of its divisors is an integer number (92565794160).

Almost surely, 2^{1662345102105} is an apocalyptic number.

1662345102105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1662345102105 is a deficient number, since it is larger than the sum of its proper divisors (1299760311015).

1662345102105 is a wasteful number, since it uses less digits than its factorization.

1662345102105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28438478 (or 28438472 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 1662345102105 in words is "one trillion, six hundred sixty-two billion, three hundred forty-five million, one hundred two thousand, one hundred five".