505299214440 has 128 divisors (see below), whose sum is σ = 1709470224000. Its totient is φ = 132735297024.

The previous prime is 505299214397. The next prime is 505299214487. The reversal of 505299214440 is 44412992505.

505299214440 is a `hidden beast` number, since 50 + 52 + 99 + 21 + 4 + 440 = 666.

It is a super-2 number, since 2×505299214440² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3419205 + ... + 3563924.

It is an arithmetic number, because the mean of its divisors is an integer number (13355236125).

Almost surely, 2^505299214440 is an apocalyptic number.

It is an amenable number.

505299214440 is an abundant number, since it is smaller than the sum of its proper divisors (1204171009560).

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

505299214440 is a wasteful number, since it uses less digits than its factorization.

505299214440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983216 (or 6983206 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 505299214440 in words is "five hundred five billion, two hundred ninety-nine million, two hundred fourteen thousand, four hundred forty".