20545626334142 has 16 divisors (see below), whose sum is σ = 37930387078752. Its totient is φ = 8127940088160.

The previous prime is 20545626334117. The next prime is 20545626334199. The reversal of 20545626334142 is 24143362654502.

It is a super-2 number, since 2×20545626334142² (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, 56444028209 + ... + 56444028572.

It is an arithmetic number, because the mean of its divisors is an integer number (2370649192422).

Almost surely, 2^{20545626334142} is an apocalyptic number.

20545626334142 is a deficient number, since it is larger than the sum of its proper divisors (17384760744610).

20545626334142 is a wasteful number, since it uses less digits than its factorization.

20545626334142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112888056803.

The product of its (nonzero) digits is 4147200, while the sum is 47.

Adding to 20545626334142 its reverse (24143362654502), we get a palindrome (44688988988644).

The spelling of 20545626334142 in words is "twenty trillion, five hundred forty-five billion, six hundred twenty-six million, three hundred thirty-four thousand, one hundred forty-two".