520136346165401 has 8 divisors (see below), whose sum is σ = 614939522560320. Its totient is φ = 430457665791888.

The previous prime is 520136346165347. The next prime is 520136346165431. The reversal of 520136346165401 is 104561643631025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520136346165401 - 2³⁰ = 520135272423577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520136346165431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1281124005131 + ... + 1281124005536.

It is an arithmetic number, because the mean of its divisors is an integer number (76867440320040).

Almost surely, 2^{520136346165401} is an apocalyptic number.

It is an amenable number.

520136346165401 is a deficient number, since it is larger than the sum of its proper divisors (94803176394919).

520136346165401 is a wasteful number, since it uses less digits than its factorization.

520136346165401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562248010703.

The product of its (nonzero) digits is 1555200, while the sum is 47.

Adding to 520136346165401 its reverse (104561643631025), we get a palindrome (624697989796426).

The spelling of 520136346165401 in words is "five hundred twenty trillion, one hundred thirty-six billion, three hundred forty-six million, one hundred sixty-five thousand, four hundred one".