9993256203505 has 32 divisors (see below), whose sum is σ = 12301897955328. Its totient is φ = 7789536849600.

The previous prime is 9993256203487. The next prime is 9993256203547. The reversal of 9993256203505 is 5053026523999.

It is not a de Polignac number, because 9993256203505 - 2¹⁷ = 9993256072433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9993256203505.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53656474 + ... + 53842396.

It is an arithmetic number, because the mean of its divisors is an integer number (384434311104).

Almost surely, 2^{9993256203505} is an apocalyptic number.

It is an amenable number.

9993256203505 is a deficient number, since it is larger than the sum of its proper divisors (2308641751823).

9993256203505 is a wasteful number, since it uses less digits than its factorization.

9993256203505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186997.

The product of its (nonzero) digits is 19683000, while the sum is 58.

The spelling of 9993256203505 in words is "nine trillion, nine hundred ninety-three billion, two hundred fifty-six million, two hundred three thousand, five hundred five".