16650229501 has 2 divisors, whose sum is σ = 16650229502. Its totient is φ = 16650229500.

The previous prime is 16650229493. The next prime is 16650229537. The reversal of 16650229501 is 10592205661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11896264900 + 4753964601 = 109070^2 + 68949^2 .

It is a cyclic number.

It is not a de Polignac number, because 16650229501 - 2³ = 16650229493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16650229201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8325114750 + 8325114751.

It is an arithmetic number, because the mean of its divisors is an integer number (8325114751).

Almost surely, 2^16650229501 is an apocalyptic number.

It is an amenable number.

16650229501 is a deficient number, since it is larger than the sum of its proper divisors (1).

16650229501 is an equidigital number, since it uses as much as digits as its factorization.

16650229501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 16650229501 in words is "sixteen billion, six hundred fifty million, two hundred twenty-nine thousand, five hundred one".