21233342535632 has 10 divisors (see below), whose sum is σ = 41139601162818. Its totient is φ = 10616671267808.

The previous prime is 21233342535607. The next prime is 21233342535659. The reversal of 21233342535632 is 23653524333212.

It can be written as a sum of positive squares in only one way, i.e., 21071992499776 + 161350035856 = 4590424^2 + 401684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663541954223 + ... + 663541954254.

Almost surely, 2^{21233342535632} is an apocalyptic number.

It is an amenable number.

21233342535632 is a deficient number, since it is larger than the sum of its proper divisors (19906258627186).

21233342535632 is a wasteful number, since it uses less digits than its factorization.

21233342535632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327083908485 (or 1327083908479 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 44.

Adding to 21233342535632 its reverse (23653524333212), we get a palindrome (44886866868844).

The spelling of 21233342535632 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred forty-two million, five hundred thirty-five thousand, six hundred thirty-two".