66460503783 has 16 divisors (see below), whose sum is σ = 97906012416. Its totient is φ = 39887633280.

The previous prime is 66460503751. The next prime is 66460503799. The reversal of 66460503783 is 38730506466.

It is a happy number.

It is not a de Polignac number, because 66460503783 - 2⁵ = 66460503751 is a prime.

It is a super-2 number, since 2×66460503783² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66460503583) 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, 28328113 + ... + 28330458.

It is an arithmetic number, because the mean of its divisors is an integer number (6119125776).

Almost surely, 2^66460503783 is an apocalyptic number.

66460503783 is a deficient number, since it is larger than the sum of its proper divisors (31445508633).

66460503783 is a wasteful number, since it uses less digits than its factorization.

66460503783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56658614.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 66460503783 in words is "sixty-six billion, four hundred sixty million, five hundred three thousand, seven hundred eighty-three".