16205151533 has 2 divisors, whose sum is σ = 16205151534. Its totient is φ = 16205151532.

The previous prime is 16205151499. The next prime is 16205151583. The reversal of 16205151533 is 33515150261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15256696324 + 948455209 = 123518^2 + 30797^2 .

It is a cyclic number.

It is not a de Polignac number, because 16205151533 - 2²⁴ = 16188374317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16205151533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16205151583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8102575766 + 8102575767.

It is an arithmetic number, because the mean of its divisors is an integer number (8102575767).

Almost surely, 2^16205151533 is an apocalyptic number.

It is an amenable number.

16205151533 is a deficient number, since it is larger than the sum of its proper divisors (1).

16205151533 is an equidigital number, since it uses as much as digits as its factorization.

16205151533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 32.

The spelling of 16205151533 in words is "sixteen billion, two hundred five million, one hundred fifty-one thousand, five hundred thirty-three".