21955536935 has 16 divisors (see below), whose sum is σ = 26822048160. Its totient is φ = 17248429440.

The previous prime is 21955536923. The next prime is 21955536947. The reversal of 21955536935 is 53963555912.

It is an interprime number because it is at equal distance from previous prime (21955536923) and next prime (21955536947).

It is not a de Polignac number, because 21955536935 - 2⁴ = 21955536919 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 130649 + ... + 246941.

It is an arithmetic number, because the mean of its divisors is an integer number (1676378010).

Almost surely, 2^21955536935 is an apocalyptic number.

21955536935 is a deficient number, since it is larger than the sum of its proper divisors (4866511225).

21955536935 is a wasteful number, since it uses less digits than its factorization.

21955536935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116978.

The product of its digits is 5467500, while the sum is 53.

The spelling of 21955536935 in words is "twenty-one billion, nine hundred fifty-five million, five hundred thirty-six thousand, nine hundred thirty-five".