22535421065 has 32 divisors (see below), whose sum is σ = 28440720000. Its totient is φ = 17119298560.

The previous prime is 22535421023. The next prime is 22535421089. The reversal of 22535421065 is 56012453522.

It is not a de Polignac number, because 22535421065 - 2⁶ = 22535421001 is a prime.

It is a super-3 number, since 3×22535421065³ (a number of 32 digits) contains 333 as substring.

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, 2141186 + ... + 2151684.

It is an arithmetic number, because the mean of its divisors is an integer number (888772500).

Almost surely, 2^22535421065 is an apocalyptic number.

It is an amenable number.

22535421065 is a deficient number, since it is larger than the sum of its proper divisors (5905298935).

22535421065 is a wasteful number, since it uses less digits than its factorization.

22535421065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10777.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 22535421065 its reverse (56012453522), we get a palindrome (78547874587).

The spelling of 22535421065 in words is "twenty-two billion, five hundred thirty-five million, four hundred twenty-one thousand, sixty-five".