20460120474377 has 2 divisors, whose sum is σ = 20460120474378. Its totient is φ = 20460120474376.

The previous prime is 20460120474371. The next prime is 20460120474383. The reversal of 20460120474377 is 77347402106402.

It is a balanced prime because it is at equal distance from previous prime (20460120474371) and next prime (20460120474383).

It can be written as a sum of positive squares in only one way, i.e., 17769352667641 + 2690767806736 = 4215371^2 + 1640356^2 .

It is a cyclic number.

It is not a de Polignac number, because 20460120474377 - 2⁸ = 20460120474121 is a prime.

It is not a weakly prime, because it can be changed into another prime (20460120474371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230060237188 + 10230060237189.

It is an arithmetic number, because the mean of its divisors is an integer number (10230060237189).

Almost surely, 2^{20460120474377} is an apocalyptic number.

It is an amenable number.

20460120474377 is a deficient number, since it is larger than the sum of its proper divisors (1).

20460120474377 is an equidigital number, since it uses as much as digits as its factorization.

20460120474377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1580544, while the sum is 47.

The spelling of 20460120474377 in words is "twenty trillion, four hundred sixty billion, one hundred twenty million, four hundred seventy-four thousand, three hundred seventy-seven".