20344135452045 has 16 divisors (see below), whose sum is σ = 32552010181440. Its totient is φ = 10849741088384.

The previous prime is 20344135452013. The next prime is 20344135452127. The reversal of 20344135452045 is 54025453144302.

It is a cyclic number.

It is not a de Polignac number, because 20344135452045 - 2⁵ = 20344135452013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20344135451988 and 20344135452006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28668159 + ... + 29369228.

It is an arithmetic number, because the mean of its divisors is an integer number (2034500636340).

Almost surely, 2^{20344135452045} is an apocalyptic number.

It is an amenable number.

20344135452045 is a deficient number, since it is larger than the sum of its proper divisors (12207874729395).

20344135452045 is a wasteful number, since it uses less digits than its factorization.

20344135452045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58060764.

The product of its (nonzero) digits is 1152000, while the sum is 42.

Adding to 20344135452045 its reverse (54025453144302), we get a palindrome (74369588596347).

The spelling of 20344135452045 in words is "twenty trillion, three hundred forty-four billion, one hundred thirty-five million, four hundred fifty-two thousand, forty-five".