10221766755 has 8 divisors (see below), whose sum is σ = 16354826832. Its totient is φ = 5451608928.

The previous prime is 10221766739. The next prime is 10221766771. The reversal of 10221766755 is 55766712201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10221766739) and next prime (10221766771).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10221766755 - 2⁴ = 10221766739 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340725544 + ... + 340725573.

It is an arithmetic number, because the mean of its divisors is an integer number (2044353354).

Almost surely, 2^10221766755 is an apocalyptic number.

10221766755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10221766755 is a deficient number, since it is larger than the sum of its proper divisors (6133060077).

10221766755 is an equidigital number, since it uses as much as digits as its factorization.

10221766755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681451125.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 10221766755 in words is "ten billion, two hundred twenty-one million, seven hundred sixty-six thousand, seven hundred fifty-five".