16611262957705 has 16 divisors (see below), whose sum is σ = 21575831763024. Its totient is φ = 12204510877440.

The previous prime is 16611262957661. The next prime is 16611262957717. The reversal of 16611262957705 is 50775926211661.

16611262957705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2120876680329 + 14490386277376 = 1456323^2 + 3806624^2 .

It is not a de Polignac number, because 16611262957705 - 2¹³ = 16611262949513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16611262957705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648611286 + ... + 648636895.

It is an arithmetic number, because the mean of its divisors is an integer number (1348489485189).

Almost surely, 2^{16611262957705} is an apocalyptic number.

It is an amenable number.

16611262957705 is a deficient number, since it is larger than the sum of its proper divisors (4964568805319).

16611262957705 is a wasteful number, since it uses less digits than its factorization.

16611262957705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297248396.

The product of its (nonzero) digits is 9525600, while the sum is 58.

The spelling of 16611262957705 in words is "sixteen trillion, six hundred eleven billion, two hundred sixty-two million, nine hundred fifty-seven thousand, seven hundred five".