10500055663 has 16 divisors (see below), whose sum is σ = 11231334400. Its totient is φ = 9799302240.

The previous prime is 10500055651. The next prime is 10500055673. The reversal of 10500055663 is 36655000501.

It is a cyclic number.

It is not a de Polignac number, because 10500055663 - 2²¹ = 10497958511 is a prime.

It is a super-2 number, since 2×10500055663² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10500055603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55453 + ... + 155161.

It is an arithmetic number, because the mean of its divisors is an integer number (701958400).

Almost surely, 2^10500055663 is an apocalyptic number.

10500055663 is a deficient number, since it is larger than the sum of its proper divisors (731278737).

10500055663 is an equidigital number, since it uses as much as digits as its factorization.

10500055663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99862.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 10500055663 in words is "ten billion, five hundred million, fifty-five thousand, six hundred sixty-three".