10206606155505 has 16 divisors (see below), whose sum is σ = 16857362425344. Its totient is φ = 5267925757440.

The previous prime is 10206606155491. The next prime is 10206606155531. The reversal of 10206606155505 is 50555160660201.

It is a de Polignac number, because none of the positive numbers 2^k-10206606155505 is a prime.

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, 10974844864 + ... + 10974845793.

It is an arithmetic number, because the mean of its divisors is an integer number (1053585151584).

Almost surely, 2^{10206606155505} is an apocalyptic number.

10206606155505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10206606155505 is a deficient number, since it is larger than the sum of its proper divisors (6650756269839).

10206606155505 is a wasteful number, since it uses less digits than its factorization.

10206606155505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21949690696.

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 10206606155505 in words is "ten trillion, two hundred six billion, six hundred six million, one hundred fifty-five thousand, five hundred five".