15230021436643 has 16 divisors (see below), whose sum is σ = 16711271831520. Its totient is φ = 13793023206144.

The previous prime is 15230021436611. The next prime is 15230021436661. The reversal of 15230021436643 is 34663412003251.

It is not a de Polignac number, because 15230021436643 - 2⁵ = 15230021436611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15230021436596 and 15230021436605.

It is not an unprimeable number, because it can be changed into a prime (15230021436673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65892903 + ... + 66123631.

It is an arithmetic number, because the mean of its divisors is an integer number (1044454489470).

Almost surely, 2^{15230021436643} is an apocalyptic number.

15230021436643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15230021436643 is a deficient number, since it is larger than the sum of its proper divisors (1481250394877).

15230021436643 is a wasteful number, since it uses less digits than its factorization.

15230021436643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326598.

The product of its (nonzero) digits is 311040, while the sum is 40.

Adding to 15230021436643 its reverse (34663412003251), we get a palindrome (49893433439894).

The spelling of 15230021436643 in words is "fifteen trillion, two hundred thirty billion, twenty-one million, four hundred thirty-six thousand, six hundred forty-three".