10004156261 has 4 divisors (see below), whose sum is σ = 10913625024. Its totient is φ = 9094687500.

The previous prime is 10004156257. The next prime is 10004156273. The reversal of 10004156261 is 16265140001.

10004156261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10004156261 - 2² = 10004156257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10004156261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10004126261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454734365 + ... + 454734386.

It is an arithmetic number, because the mean of its divisors is an integer number (2728406256).

Almost surely, 2^10004156261 is an apocalyptic number.

10004156261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10004156261 is a deficient number, since it is larger than the sum of its proper divisors (909468763).

10004156261 is an equidigital number, since it uses as much as digits as its factorization.

10004156261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909468762.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 10004156261 its reverse (16265140001), we get a palindrome (26269296262).

The spelling of 10004156261 in words is "ten billion, four million, one hundred fifty-six thousand, two hundred sixty-one".