20345026115454 has 16 divisors (see below), whose sum is σ = 40690118235648. Its totient is φ = 6781664371032.

The previous prime is 20345026115441. The next prime is 20345026115473. The reversal of 20345026115454 is 45451162054302.

It is a super-2 number, since 2×20345026115454² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1848339 + ... + 6641265.

It is an arithmetic number, because the mean of its divisors is an integer number (2543132389728).

Almost surely, 2^{20345026115454} is an apocalyptic number.

20345026115454 is an abundant number, since it is smaller than the sum of its proper divisors (20345092120194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20345026115454 is a wasteful number, since it uses less digits than its factorization.

20345026115454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500399.

The product of its (nonzero) digits is 576000, while the sum is 42.

Adding to 20345026115454 its reverse (45451162054302), we get a palindrome (65796188169756).

The spelling of 20345026115454 in words is "twenty trillion, three hundred forty-five billion, twenty-six million, one hundred fifteen thousand, four hundred fifty-four".