10421505613530 has 320 divisors, whose sum is σ = 31268232230400. Its totient is φ = 2468865484800.

The previous prime is 10421505613451. The next prime is 10421505613591. The reversal of 10421505613530 is 3531650512401.

10421505613530 is a `hidden beast` number, since 1 + 0 + 4 + 2 + 1 + 5 + 0 + 5 + 613 + 5 + 30 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 276788146 + ... + 276825794.

It is an arithmetic number, because the mean of its divisors is an integer number (97713225720).

Almost surely, 2^{10421505613530} is an apocalyptic number.

10421505613530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10421505613530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15634116115200).

10421505613530 is an abundant number, since it is smaller than the sum of its proper divisors (20846726616870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10421505613530 is a wasteful number, since it uses less digits than its factorization.

10421505613530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38387 (or 38378 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 10421505613530 in words is "ten trillion, four hundred twenty-one billion, five hundred five million, six hundred thirteen thousand, five hundred thirty".