10605155555 has 4 divisors (see below), whose sum is σ = 12726186672. Its totient is φ = 8484124440.

The previous prime is 10605155531. The next prime is 10605155557. The reversal of 10605155555 is 55555150601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10605155555 - 2¹⁶ = 10605090019 is a prime.

It is a super-2 number, since 2×10605155555² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10605155557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060515551 + ... + 1060515560.

It is an arithmetic number, because the mean of its divisors is an integer number (3181546668).

Almost surely, 2^10605155555 is an apocalyptic number.

10605155555 is a deficient number, since it is larger than the sum of its proper divisors (2121031117).

10605155555 is an equidigital number, since it uses as much as digits as its factorization.

10605155555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121031116.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 10605155555 in words is "ten billion, six hundred five million, one hundred fifty-five thousand, five hundred fifty-five".