2660416505 has 8 divisors (see below), whose sum is σ = 3237465024. Its totient is φ = 2098356400.

The previous prime is 2660416469. The next prime is 2660416523. The reversal of 2660416505 is 5056140662.

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

It is not a de Polignac number, because 2660416505 - 2²⁰ = 2659367929 is a prime.

It is a Duffinian number.

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, 3746711 + ... + 3747420.

It is an arithmetic number, because the mean of its divisors is an integer number (404683128).

Almost surely, 2^2660416505 is an apocalyptic number.

It is an amenable number.

2660416505 is a deficient number, since it is larger than the sum of its proper divisors (577048519).

2660416505 is an equidigital number, since it uses as much as digits as its factorization.

2660416505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7494207.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 2660416505 is about 51579.2255176442. The cubic root of 2660416505 is about 1385.6382961508.

The spelling of 2660416505 in words is "two billion, six hundred sixty million, four hundred sixteen thousand, five hundred five".