505606182121 has 8 divisors (see below), whose sum is σ = 516615375744. Its totient is φ = 494607472560.

The previous prime is 505606182079. The next prime is 505606182127. The reversal of 505606182121 is 121281606505.

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 505606182121 - 2²³ = 505597793513 is a prime.

It is a super-2 number, since 2×505606182121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505606182127) 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, 2523475 + ... + 2716456.

It is an arithmetic number, because the mean of its divisors is an integer number (64576921968).

Almost surely, 2^505606182121 is an apocalyptic number.

It is an amenable number.

505606182121 is a deficient number, since it is larger than the sum of its proper divisors (11009193623).

505606182121 is a wasteful number, since it uses less digits than its factorization.

505606182121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242031.

The product of its (nonzero) digits is 28800, while the sum is 37.

Adding to 505606182121 its reverse (121281606505), we get a palindrome (626887788626).

The spelling of 505606182121 in words is "five hundred five billion, six hundred six million, one hundred eighty-two thousand, one hundred twenty-one".