20035500215 has 16 divisors (see below), whose sum is σ = 25107549696. Its totient is φ = 15319524000.

The previous prime is 20035500187. The next prime is 20035500257. The reversal of 20035500215 is 51200553002.

It is not a de Polignac number, because 20035500215 - 2¹⁰ = 20035499191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80990 + ... + 215940.

It is an arithmetic number, because the mean of its divisors is an integer number (1569221856).

Almost surely, 2^20035500215 is an apocalyptic number.

20035500215 is a deficient number, since it is larger than the sum of its proper divisors (5072049481).

20035500215 is a wasteful number, since it uses less digits than its factorization.

20035500215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136270.

The product of its (nonzero) digits is 1500, while the sum is 23.

The spelling of 20035500215 in words is "twenty billion, thirty-five million, five hundred thousand, two hundred fifteen".