10220172765 has 32 divisors (see below), whose sum is σ = 17845940736. Its totient is φ = 4953264960.

The previous prime is 10220172757. The next prime is 10220172769. The reversal of 10220172765 is 56727102201.

It is not a de Polignac number, because 10220172765 - 2³ = 10220172757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220172769) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 458202 + ... + 479988.

It is an arithmetic number, because the mean of its divisors is an integer number (557685648).

Almost surely, 2^10220172765 is an apocalyptic number.

10220172765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10220172765 is a deficient number, since it is larger than the sum of its proper divisors (7625767971).

10220172765 is a wasteful number, since it uses less digits than its factorization.

10220172765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24649.

The product of its (nonzero) digits is 11760, while the sum is 33.

Adding to 10220172765 its reverse (56727102201), we get a palindrome (66947274966).

The spelling of 10220172765 in words is "ten billion, two hundred twenty million, one hundred seventy-two thousand, seven hundred sixty-five".