16504502745 has 8 divisors (see below), whose sum is σ = 26407204416. Its totient is φ = 8802401456.

The previous prime is 16504502731. The next prime is 16504502753. The reversal of 16504502745 is 54720540561.

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 16504502745 - 2⁶ = 16504502681 is a prime.

It is a super-2 number, since 2×16504502745² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550150077 + ... + 550150106.

It is an arithmetic number, because the mean of its divisors is an integer number (3300900552).

Almost surely, 2^16504502745 is an apocalyptic number.

16504502745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16504502745 is a deficient number, since it is larger than the sum of its proper divisors (9902701671).

16504502745 is a wasteful number, since it uses less digits than its factorization.

16504502745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100300191.

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 16504502745 in words is "sixteen billion, five hundred four million, five hundred two thousand, seven hundred forty-five".