10500538555 has 8 divisors (see below), whose sum is σ = 13569926832. Its totient is φ = 7754243808.

The previous prime is 10500538541. The next prime is 10500538561. The reversal of 10500538555 is 55583500501.

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 10500538555 - 2¹¹ = 10500536507 is a prime.

It is a super-2 number, since 2×10500538555² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80773309 + ... + 80773438.

It is an arithmetic number, because the mean of its divisors is an integer number (1696240854).

Almost surely, 2^10500538555 is an apocalyptic number.

10500538555 is a deficient number, since it is larger than the sum of its proper divisors (3069388277).

10500538555 is a wasteful number, since it uses less digits than its factorization.

10500538555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161546765.

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 10500538555 in words is "ten billion, five hundred million, five hundred thirty-eight thousand, five hundred fifty-five".