20146713077 has 8 divisors (see below), whose sum is σ = 20256410040. Its totient is φ = 20037205440.

The previous prime is 20146713071. The next prime is 20146713079. The reversal of 20146713077 is 77031764102.

It can be written as a sum of positive squares in 4 ways, for example, as 3081471121 + 17065241956 = 55511^2 + 130634^2 .

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 20146713077 - 2¹⁴ = 20146696693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20146713077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20146713071) 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 7 ways as a sum of consecutive naturals, for example, 168743 + ... + 262235.

It is an arithmetic number, because the mean of its divisors is an integer number (2532051255).

Almost surely, 2^20146713077 is an apocalyptic number.

It is an amenable number.

20146713077 is a deficient number, since it is larger than the sum of its proper divisors (109696963).

20146713077 is an equidigital number, since it uses as much as digits as its factorization.

20146713077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94663.

The product of its (nonzero) digits is 49392, while the sum is 38.

The spelling of 20146713077 in words is "twenty billion, one hundred forty-six million, seven hundred thirteen thousand, seventy-seven".