18146006401 has 2 divisors, whose sum is σ = 18146006402. Its totient is φ = 18146006400.

The previous prime is 18146006383. The next prime is 18146006447. The reversal of 18146006401 is 10460064181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16098534400 + 2047472001 = 126880^2 + 45249^2 .

It is a cyclic number.

It is not a de Polignac number, because 18146006401 - 2¹³ = 18145998209 is a prime.

It is not a weakly prime, because it can be changed into another prime (18146066401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9073003200 + 9073003201.

It is an arithmetic number, because the mean of its divisors is an integer number (9073003201).

Almost surely, 2^18146006401 is an apocalyptic number.

It is an amenable number.

18146006401 is a deficient number, since it is larger than the sum of its proper divisors (1).

18146006401 is an equidigital number, since it uses as much as digits as its factorization.

18146006401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 18146006401 in words is "eighteen billion, one hundred forty-six million, six thousand, four hundred one".