1420015690165 has 8 divisors (see below), whose sum is σ = 1704203921880. Its totient is φ = 1135889156352.

The previous prime is 1420015690151. The next prime is 1420015690193. The reversal of 1420015690165 is 5610965100241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53309730321 + 1366705959844 = 230889^2 + 1169062^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1420015690165 - 2¹⁵ = 1420015657397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15373824 + ... + 15465913.

It is an arithmetic number, because the mean of its divisors is an integer number (213025490235).

Almost surely, 2^{1420015690165} is an apocalyptic number.

It is an amenable number.

1420015690165 is a deficient number, since it is larger than the sum of its proper divisors (284188231715).

1420015690165 is an equidigital number, since it uses as much as digits as its factorization.

1420015690165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30848951.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 1420015690165 in words is "one trillion, four hundred twenty billion, fifteen million, six hundred ninety thousand, one hundred sixty-five".