20460150474409 has 2 divisors, whose sum is σ = 20460150474410. Its totient is φ = 20460150474408.

The previous prime is 20460150474359. The next prime is 20460150474419. The reversal of 20460150474409 is 90447405106402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20103144224409 + 357006250000 = 4483653^2 + 597500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20460150474409 is a prime.

It is not a weakly prime, because it can be changed into another prime (20460150474419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230075237204 + 10230075237205.

It is an arithmetic number, because the mean of its divisors is an integer number (10230075237205).

Almost surely, 2^{20460150474409} is an apocalyptic number.

It is an amenable number.

20460150474409 is a deficient number, since it is larger than the sum of its proper divisors (1).

20460150474409 is an equidigital number, since it uses as much as digits as its factorization.

20460150474409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 20460150474409 in words is "twenty trillion, four hundred sixty billion, one hundred fifty million, four hundred seventy-four thousand, four hundred nine".