20180460077 has 8 divisors (see below), whose sum is σ = 20620586496. Its totient is φ = 19740781872.

The previous prime is 20180460037. The next prime is 20180460103. The reversal of 20180460077 is 77006408102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20180460077 - 2²⁰ = 20179411501 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 (20180460007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20213 + ... + 201914.

It is an arithmetic number, because the mean of its divisors is an integer number (2577573312).

Almost surely, 2^20180460077 is an apocalyptic number.

It is an amenable number.

20180460077 is a deficient number, since it is larger than the sum of its proper divisors (440126419).

20180460077 is a wasteful number, since it uses less digits than its factorization.

20180460077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224107.

The product of its (nonzero) digits is 18816, while the sum is 35.

Adding to 20180460077 its reverse (77006408102), we get a palindrome (97186868179).

The spelling of 20180460077 in words is "twenty billion, one hundred eighty million, four hundred sixty thousand, seventy-seven".