10521331266 has 8 divisors (see below), whose sum is σ = 21042662544. Its totient is φ = 3507110420.

The previous prime is 10521331259. The next prime is 10521331277. The reversal of 10521331266 is 66213312501.

It is a sphenic number, since it is the product of 3 distinct primes.

10521331266 is an admirable number.

It is a super-2 number, since 2×10521331266² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876777600 + ... + 876777611.

It is an arithmetic number, because the mean of its divisors is an integer number (2630332818).

Almost surely, 2^10521331266 is an apocalyptic number.

10521331266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10521331266 is a wasteful number, since it uses less digits than its factorization.

10521331266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753555216.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 10521331266 its reverse (66213312501), we get a palindrome (76734643767).

The spelling of 10521331266 in words is "ten billion, five hundred twenty-one million, three hundred thirty-one thousand, two hundred sixty-six".