21533541153034 has 8 divisors (see below), whose sum is σ = 32301275069700. Its totient is φ = 10766449463136.

The previous prime is 21533541152957. The next prime is 21533541153083. The reversal of 21533541153034 is 43035114533512.

It can be written as a sum of positive squares in 2 ways, for example, as 21307483696009 + 226057457025 = 4616003^2 + 475455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160472859 + ... + 160606990.

Almost surely, 2^{21533541153034} is an apocalyptic number.

21533541153034 is a deficient number, since it is larger than the sum of its proper divisors (10767733916666).

21533541153034 is a wasteful number, since it uses less digits than its factorization.

21533541153034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321113384.

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 21533541153034 its reverse (43035114533512), we get a palindrome (64568655686546).

The spelling of 21533541153034 in words is "twenty-one trillion, five hundred thirty-three billion, five hundred forty-one million, one hundred fifty-three thousand, thirty-four".