10447211520 has 396 divisors, whose sum is σ = 37710554544. Its totient is φ = 2776965120.

The previous prime is 10447211491. The next prime is 10447211521. The reversal of 10447211520 is 2511274401.

10447211520 is a `hidden beast` number, since 1 + 0 + 447 + 211 + 5 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (10447211521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33592165 + ... + 33592475.

Almost surely, 2^10447211520 is an apocalyptic number.

10447211520 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 10447211520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18855277272).

10447211520 is an abundant number, since it is smaller than the sum of its proper divisors (27263343024).

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

10447211520 is an frugal number, since it uses more digits than its factorization.

10447211520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

Adding to 10447211520 its reverse (2511274401), we get a palindrome (12958485921).

The spelling of 10447211520 in words is "ten billion, four hundred forty-seven million, two hundred eleven thousand, five hundred twenty".