10515521016 has 192 divisors, whose sum is σ = 38238520320. Its totient is φ = 2521186560.

The previous prime is 10515520927. The next prime is 10515521039. The reversal of 10515521016 is 61012551501.

10515521016 is a `hidden beast` number, since 1 + 0 + 5 + 1 + 552 + 101 + 6 = 666.

It is a super-2 number, since 2×10515521016² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 880 + ... + 145023.

It is an arithmetic number, because the mean of its divisors is an integer number (199158960).

Almost surely, 2^10515521016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10515521016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19119260160).

10515521016 is an abundant number, since it is smaller than the sum of its proper divisors (27722999304).

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

10515521016 is a wasteful number, since it uses less digits than its factorization.

10515521016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145946 (or 145939 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

The spelling of 10515521016 in words is "ten billion, five hundred fifteen million, five hundred twenty-one thousand, sixteen".