15620242063 has 4 divisors (see below), whose sum is σ = 15655823920. Its totient is φ = 15584660208.

The previous prime is 15620242051. The next prime is 15620242111. The reversal of 15620242063 is 36024202651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36024202651 = 12149 ⋅2965199.

It is a cyclic number.

It is not a de Polignac number, because 15620242063 - 2²¹ = 15618144911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15620240063) 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 3 ways as a sum of consecutive naturals, for example, 17790270 + ... + 17791147.

It is an arithmetic number, because the mean of its divisors is an integer number (3913955980).

Almost surely, 2^15620242063 is an apocalyptic number.

15620242063 is a deficient number, since it is larger than the sum of its proper divisors (35581857).

15620242063 is an equidigital number, since it uses as much as digits as its factorization.

15620242063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35581856.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 15620242063 in words is "fifteen billion, six hundred twenty million, two hundred forty-two thousand, sixty-three".