10005655381 has 2 divisors, whose sum is σ = 10005655382. Its totient is φ = 10005655380.

The previous prime is 10005655369. The next prime is 10005655409. The reversal of 10005655381 is 18355650001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6535267281 + 3470388100 = 80841^2 + 58910^2 .

It is a cyclic number.

It is not a de Polignac number, because 10005655381 - 2⁵ = 10005655349 is a prime.

It is a super-2 number, since 2×10005655381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10005655321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002827690 + 5002827691.

It is an arithmetic number, because the mean of its divisors is an integer number (5002827691).

Almost surely, 2^10005655381 is an apocalyptic number.

It is an amenable number.

10005655381 is a deficient number, since it is larger than the sum of its proper divisors (1).

10005655381 is an equidigital number, since it uses as much as digits as its factorization.

10005655381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 10005655381 in words is "ten billion, five million, six hundred fifty-five thousand, three hundred eighty-one".