15820723012630 has 32 divisors (see below), whose sum is σ = 28729427973120. Its totient is φ = 6272411096160.

The previous prime is 15820723012583. The next prime is 15820723012639. The reversal of 15820723012630 is 3621032702851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15820723012639) 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 15 ways as a sum of consecutive naturals, for example, 8531736 + ... + 10219195.

It is an arithmetic number, because the mean of its divisors is an integer number (897794624160).

Almost surely, 2^{15820723012630} is an apocalyptic number.

15820723012630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15820723012630 is a deficient number, since it is larger than the sum of its proper divisors (12908704960490).

15820723012630 is a wasteful number, since it uses less digits than its factorization.

15820723012630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18751684.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 15820723012630 in words is "fifteen trillion, eight hundred twenty billion, seven hundred twenty-three million, twelve thousand, six hundred thirty".