10995772521 has 16 divisors (see below), whose sum is σ = 14851259136. Its totient is φ = 7235562576.

The previous prime is 10995772507. The next prime is 10995772553. The reversal of 10995772521 is 12527759901.

It is a happy number.

10995772521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10995772521 - 2⁶ = 10995772457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10995772561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259966 + ... + 299288.

It is an arithmetic number, because the mean of its divisors is an integer number (928203696).

Almost surely, 2^10995772521 is an apocalyptic number.

It is an amenable number.

10995772521 is a deficient number, since it is larger than the sum of its proper divisors (3855486615).

10995772521 is a wasteful number, since it uses less digits than its factorization.

10995772521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40532.

The product of its (nonzero) digits is 396900, while the sum is 48.

The spelling of 10995772521 in words is "ten billion, nine hundred ninety-five million, seven hundred seventy-two thousand, five hundred twenty-one".