100505105050557 has 8 divisors (see below), whose sum is σ = 135894226547520. Its totient is φ = 66059693460320.

The previous prime is 100505105050523. The next prime is 100505105050561. The reversal of 100505105050557 is 755050501505001.

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

It is a cyclic number.

It is not a de Polignac number, because 100505105050557 - 2¹⁰ = 100505105049533 is a prime.

It is a super-2 number, since 2×100505105050557² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100505105090557) 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, 235927476432 + ... + 235927476857.

It is an arithmetic number, because the mean of its divisors is an integer number (16986778318440).

Almost surely, 2^{100505105050557} is an apocalyptic number.

It is an amenable number.

100505105050557 is a deficient number, since it is larger than the sum of its proper divisors (35389121496963).

100505105050557 is an equidigital number, since it uses as much as digits as its factorization.

100505105050557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471854953363.

The product of its (nonzero) digits is 109375, while the sum is 39.

Adding to 100505105050557 its reverse (755050501505001), we get a palindrome (855555606555558).

The spelling of 100505105050557 in words is "one hundred trillion, five hundred five billion, one hundred five million, fifty thousand, five hundred fifty-seven".