20413525552145 has 24 divisors (see below), whose sum is σ = 26925919960128. Its totient is φ = 14846028896160.

The previous prime is 20413525552127. The next prime is 20413525552157. The reversal of 20413525552145 is 54125552531402.

It is not a de Polignac number, because 20413525552145 - 2¹⁰ = 20413525551121 is a prime.

It is a super-2 number, since 2×20413525552145² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20413525552096 and 20413525552105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78376604 + ... + 78636626.

It is an arithmetic number, because the mean of its divisors is an integer number (1121913331672).

Almost surely, 2^{20413525552145} is an apocalyptic number.

It is an amenable number.

20413525552145 is a deficient number, since it is larger than the sum of its proper divisors (6512394407983).

20413525552145 is a wasteful number, since it uses less digits than its factorization.

20413525552145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389813 (or 389802 counting only the distinct ones).

The product of its (nonzero) digits is 1200000, while the sum is 44.

The spelling of 20413525552145 in words is "twenty trillion, four hundred thirteen billion, five hundred twenty-five million, five hundred fifty-two thousand, one hundred forty-five".