1420241665525 has 24 divisors (see below), whose sum is σ = 1819670192384. Its totient is φ = 1098476899200.

The previous prime is 1420241665489. The next prime is 1420241665529. The reversal of 1420241665525 is 5255661420241.

It is a happy number.

It is not a de Polignac number, because 1420241665525 - 2¹⁵ = 1420241632757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420241665529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86439 + ... + 1687588.

Almost surely, 2^{1420241665525} is an apocalyptic number.

It is an amenable number.

1420241665525 is a deficient number, since it is larger than the sum of its proper divisors (399428526859).

1420241665525 is a wasteful number, since it uses less digits than its factorization.

1420241665525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775101 (or 1775096 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 1420241665525 in words is "one trillion, four hundred twenty billion, two hundred forty-one million, six hundred sixty-five thousand, five hundred twenty-five".