10206254635643 has 32 divisors (see below), whose sum is σ = 11315041113600. Its totient is φ = 9128584268800.

The previous prime is 10206254635639. The next prime is 10206254635721. The reversal of 10206254635643 is 34653645260201.

It is a cyclic number.

It is not a de Polignac number, because 10206254635643 - 2² = 10206254635639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10206254635043) 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, 665805803 + ... + 665821131.

It is an arithmetic number, because the mean of its divisors is an integer number (353595034800).

Almost surely, 2^{10206254635643} is an apocalyptic number.

10206254635643 is a deficient number, since it is larger than the sum of its proper divisors (1108786477957).

10206254635643 is a wasteful number, since it uses less digits than its factorization.

10206254635643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18403.

The product of its (nonzero) digits is 3110400, while the sum is 47.

Adding to 10206254635643 its reverse (34653645260201), we get a palindrome (44859899895844).

The spelling of 10206254635643 in words is "ten trillion, two hundred six billion, two hundred fifty-four million, six hundred thirty-five thousand, six hundred forty-three".