10011505521620 has 96 divisors (see below), whose sum is σ = 21989413232640. Its totient is φ = 3824496097920.

The previous prime is 10011505521587. The next prime is 10011505521631. The reversal of 10011505521620 is 2612550511001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14044247 + ... + 14739873.

It is an arithmetic number, because the mean of its divisors is an integer number (229056387840).

Almost surely, 2^{10011505521620} is an apocalyptic number.

10011505521620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10011505521620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10994706616320).

10011505521620 is an abundant number, since it is smaller than the sum of its proper divisors (11977907711020).

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

10011505521620 is a wasteful number, since it uses less digits than its factorization.

10011505521620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695973 (or 695971 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 29.

The spelling of 10011505521620 in words is "ten trillion, eleven billion, five hundred five million, five hundred twenty-one thousand, six hundred twenty".