13260021505170 has 256 divisors, whose sum is σ = 37301987082240. Its totient is φ = 2980853657600.

The previous prime is 13260021505147. The next prime is 13260021505307. The reversal of 13260021505170 is 7150512006231.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 642463711 + ... + 642484349.

It is an arithmetic number, because the mean of its divisors is an integer number (145710887040).

Almost surely, 2^{13260021505170} is an apocalyptic number.

13260021505170 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 13260021505170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18650993541120).

13260021505170 is an abundant number, since it is smaller than the sum of its proper divisors (24041965577070).

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

13260021505170 is a wasteful number, since it uses less digits than its factorization.

13260021505170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22361.

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 13260021505170 in words is "thirteen trillion, two hundred sixty billion, twenty-one million, five hundred five thousand, one hundred seventy".