10645551355 has 4 divisors (see below), whose sum is σ = 12774661632. Its totient is φ = 8516441080.

The previous prime is 10645551349. The next prime is 10645551407. The reversal of 10645551355 is 55315554601.

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 10645551355 - 2¹³ = 10645543163 is a prime.

It is a super-2 number, since 2×10645551355² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064555131 + ... + 1064555140.

It is an arithmetic number, because the mean of its divisors is an integer number (3193665408).

Almost surely, 2^10645551355 is an apocalyptic number.

10645551355 is a deficient number, since it is larger than the sum of its proper divisors (2129110277).

10645551355 is an equidigital number, since it uses as much as digits as its factorization.

10645551355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129110276.

The product of its (nonzero) digits is 225000, while the sum is 40.

The spelling of 10645551355 in words is "ten billion, six hundred forty-five million, five hundred fifty-one thousand, three hundred fifty-five".