10455815521 has 8 divisors (see below), whose sum is σ = 10491747200. Its totient is φ = 10419926832.

The previous prime is 10455815453. The next prime is 10455815537. The reversal of 10455815521 is 12551855401.

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

It is a cyclic number.

It is not a de Polignac number, because 10455815521 - 2²¹ = 10453718369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10455815551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520930 + ... + 540628.

It is an arithmetic number, because the mean of its divisors is an integer number (1311468400).

Almost surely, 2^10455815521 is an apocalyptic number.

It is an amenable number.

10455815521 is a deficient number, since it is larger than the sum of its proper divisors (35931679).

10455815521 is a wasteful number, since it uses less digits than its factorization.

10455815521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21495.

The product of its (nonzero) digits is 40000, while the sum is 37.

The spelling of 10455815521 in words is "ten billion, four hundred fifty-five million, eight hundred fifteen thousand, five hundred twenty-one".