20452354033215 has 32 divisors (see below), whose sum is σ = 35246994019776. Its totient is φ = 10067132712960.

The previous prime is 20452354033213. The next prime is 20452354033217. The reversal of 20452354033215 is 51233045325402.

It is an interprime number because it is at equal distance from previous prime (20452354033213) and next prime (20452354033217).

It is not a de Polignac number, because 20452354033215 - 2¹ = 20452354033213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20452354033213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7804714 + ... + 10090503.

It is an arithmetic number, because the mean of its divisors is an integer number (1101468563118).

Almost surely, 2^{20452354033215} is an apocalyptic number.

20452354033215 is a deficient number, since it is larger than the sum of its proper divisors (14794639986561).

20452354033215 is a wasteful number, since it uses less digits than its factorization.

20452354033215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17901099.

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 20452354033215 its reverse (51233045325402), we get a palindrome (71685399358617).

The spelling of 20452354033215 in words is "twenty trillion, four hundred fifty-two billion, three hundred fifty-four million, thirty-three thousand, two hundred fifteen".