10655509987 has 2 divisors, whose sum is σ = 10655509988. Its totient is φ = 10655509986.

The previous prime is 10655509901. The next prime is 10655510011. The reversal of 10655509987 is 78990555601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10655509987 - 2⁷ = 10655509859 is a prime.

It is a super-2 number, since 2×10655509987² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10655509087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5327754993 + 5327754994.

It is an arithmetic number, because the mean of its divisors is an integer number (5327754994).

Almost surely, 2^10655509987 is an apocalyptic number.

10655509987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10655509987 is an equidigital number, since it uses as much as digits as its factorization.

10655509987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402000, while the sum is 55.

The spelling of 10655509987 in words is "ten billion, six hundred fifty-five million, five hundred nine thousand, nine hundred eighty-seven".