20413153120540 has 192 divisors, whose sum is σ = 45633856536576. Its totient is φ = 7658370720000.

The previous prime is 20413153120531. The next prime is 20413153120579. The reversal of 20413153120540 is 4502135131402.

It is a super-2 number, since 2×20413153120540² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1874308495 + ... + 1874319385.

It is an arithmetic number, because the mean of its divisors is an integer number (237676336128).

Almost surely, 2^{20413153120540} is an apocalyptic number.

20413153120540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20413153120540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22816928268288).

20413153120540 is an abundant number, since it is smaller than the sum of its proper divisors (25220703416036).

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

20413153120540 is a wasteful number, since it uses less digits than its factorization.

20413153120540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11600 (or 11598 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 20413153120540 its reverse (4502135131402), we get a palindrome (24915288251942).

The spelling of 20413153120540 in words is "twenty trillion, four hundred thirteen billion, one hundred fifty-three million, one hundred twenty thousand, five hundred forty".