10006561655 has 8 divisors (see below), whose sum is σ = 12036398784. Its totient is φ = 7986232800.

The previous prime is 10006561637. The next prime is 10006561673. The reversal of 10006561655 is 55616560001.

It is an interprime number because it is at equal distance from previous prime (10006561637) and next prime (10006561673).

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

It is not a de Polignac number, because 10006561655 - 2¹⁴ = 10006545271 is a prime.

It is a Duffinian number.

It is a congruent 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, 2374751 + ... + 2378960.

It is an arithmetic number, because the mean of its divisors is an integer number (1504549848).

Almost surely, 2^10006561655 is an apocalyptic number.

10006561655 is a deficient number, since it is larger than the sum of its proper divisors (2029837129).

10006561655 is an equidigital number, since it uses as much as digits as its factorization.

10006561655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754137.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 10006561655 in words is "ten billion, six million, five hundred sixty-one thousand, six hundred fifty-five".