20415516433241 has 4 divisors (see below), whose sum is σ = 20913455858484. Its totient is φ = 19917577008000.

The previous prime is 20415516433231. The next prime is 20415516433267. The reversal of 20415516433241 is 14233461551402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 475906819600 + 19939609613641 = 689860^2 + 4465379^2 .

It is a cyclic number.

It is not a de Polignac number, because 20415516433241 - 2¹⁸ = 20415516171097 is a prime.

It is a super-2 number, since 2×20415516433241² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 497939425201 = 20415516433241 / (2 + 0 + 4 + 1 + 5 + 5 + 1 + 6 + 4 + 3 + 3 + 2 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20415516433211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248969712560 + ... + 248969712641.

It is an arithmetic number, because the mean of its divisors is an integer number (5228363964621).

Almost surely, 2^{20415516433241} is an apocalyptic number.

It is an amenable number.

20415516433241 is a deficient number, since it is larger than the sum of its proper divisors (497939425243).

20415516433241 is an equidigital number, since it uses as much as digits as its factorization.

20415516433241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497939425242.

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 20415516433241 its reverse (14233461551402), we get a palindrome (34648977984643).

The spelling of 20415516433241 in words is "twenty trillion, four hundred fifteen billion, five hundred sixteen million, four hundred thirty-three thousand, two hundred forty-one".