10206560655 has 32 divisors (see below), whose sum is σ = 18531072000. Its totient is φ = 5327676576.

The previous prime is 10206560633. The next prime is 10206560659. The reversal of 10206560655 is 55606560201.

It is a happy number.

10206560655 is a `hidden beast` number, since 10 + 20 + 6 + 560 + 65 + 5 = 666.

It is not a de Polignac number, because 10206560655 - 2⁶ = 10206560591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10206560659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 797955 + ... + 810644.

It is an arithmetic number, because the mean of its divisors is an integer number (579096000).

Almost surely, 2^10206560655 is an apocalyptic number.

10206560655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10206560655 is a deficient number, since it is larger than the sum of its proper divisors (8324511345).

10206560655 is a wasteful number, since it uses less digits than its factorization.

10206560655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608660 (or 1608654 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 10206560655 in words is "ten billion, two hundred six million, five hundred sixty thousand, six hundred fifty-five".