16615504045 has 8 divisors (see below), whose sum is σ = 22786977024. Its totient is φ = 11393488464.

The previous prime is 16615504043. The next prime is 16615504057. The reversal of 16615504045 is 54040551661.

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 16615504045 - 2¹ = 16615504043 is a prime.

It is a super-2 number, since 2×16615504045² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16615503995 and 16615504013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16615504043) 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, 237364309 + ... + 237364378.

It is an arithmetic number, because the mean of its divisors is an integer number (2848372128).

Almost surely, 2^16615504045 is an apocalyptic number.

It is an amenable number.

16615504045 is a deficient number, since it is larger than the sum of its proper divisors (6171472979).

16615504045 is an equidigital number, since it uses as much as digits as its factorization.

16615504045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474728699.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 16615504045 in words is "sixteen billion, six hundred fifteen million, five hundred four thousand, forty-five".