146649783601 has 2 divisors, whose sum is σ = 146649783602. Its totient is φ = 146649783600.

The previous prime is 146649783571. The next prime is 146649783653. The reversal of 146649783601 is 106387946641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93850935201 + 52798848400 = 306351^2 + 229780^2 .

It is a cyclic number.

It is not a de Polignac number, because 146649783601 - 2³⁵ = 112290045233 is a prime.

It is not a weakly prime, because it can be changed into another prime (146649783701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73324891800 + 73324891801.

It is an arithmetic number, because the mean of its divisors is an integer number (73324891801).

Almost surely, 2^146649783601 is an apocalyptic number.

It is an amenable number.

146649783601 is a deficient number, since it is larger than the sum of its proper divisors (1).

146649783601 is an equidigital number, since it uses as much as digits as its factorization.

146649783601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 146649783601 in words is "one hundred forty-six billion, six hundred forty-nine million, seven hundred eighty-three thousand, six hundred one".