20452340160154 has 32 divisors (see below), whose sum is σ = 36608704387200. Its totient is φ = 8561444705856.

The previous prime is 20452340160151. The next prime is 20452340160163. The reversal of 20452340160154 is 45106104325402.

It is not an unprimeable number, because it can be changed into a prime (20452340160151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346643839 + ... + 346702834.

It is an arithmetic number, because the mean of its divisors is an integer number (1144022012100).

Almost surely, 2^{20452340160154} is an apocalyptic number.

20452340160154 is a deficient number, since it is larger than the sum of its proper divisors (16156364227046).

20452340160154 is an equidigital number, since it uses as much as digits as its factorization.

20452340160154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693346739 (or 693346725 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 20452340160154 its reverse (45106104325402), we get a palindrome (65558444485556).

The spelling of 20452340160154 in words is "twenty trillion, four hundred fifty-two billion, three hundred forty million, one hundred sixty thousand, one hundred fifty-four".