16764041263 has 4 divisors (see below), whose sum is σ = 17120723040. Its totient is φ = 16407359488.

The previous prime is 16764041171. The next prime is 16764041267. The reversal of 16764041263 is 36214046761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36214046761 = 103 ⋅351592687.

It is a cyclic number.

It is not a de Polignac number, because 16764041263 - 2³³ = 8174106671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16764041267) 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, 178340818 + ... + 178340911.

It is an arithmetic number, because the mean of its divisors is an integer number (4280180760).

Almost surely, 2^16764041263 is an apocalyptic number.

16764041263 is a deficient number, since it is larger than the sum of its proper divisors (356681777).

16764041263 is an equidigital number, since it uses as much as digits as its factorization.

16764041263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356681776.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 16764041263 in words is "sixteen billion, seven hundred sixty-four million, forty-one thousand, two hundred sixty-three".