66130777153 has 6 divisors (see below), whose sum is σ = 76927638786. Its totient is φ = 56683523232.

The previous prime is 66130777147. The next prime is 66130777157. The reversal of 66130777153 is 35177703166.

66130777153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 49149559809 + 16981217344 = 221697^2 + 130312^2 .

It is a de Polignac number, because none of the positive numbers 2^k-66130777153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66130777157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 674803800 + ... + 674803897.

It is an arithmetic number, because the mean of its divisors is an integer number (12821273131).

Almost surely, 2^66130777153 is an apocalyptic number.

It is an amenable number.

66130777153 is a deficient number, since it is larger than the sum of its proper divisors (10796861633).

66130777153 is a wasteful number, since it uses less digits than its factorization.

66130777153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349607711 (or 1349607704 counting only the distinct ones).

The product of its (nonzero) digits is 555660, while the sum is 46.

The spelling of 66130777153 in words is "sixty-six billion, one hundred thirty million, seven hundred seventy-seven thousand, one hundred fifty-three".