16153642261 has 2 divisors, whose sum is σ = 16153642262. Its totient is φ = 16153642260.

The previous prime is 16153642249. The next prime is 16153642289. The reversal of 16153642261 is 16224635161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14956067025 + 1197575236 = 122295^2 + 34606^2 .

It is a cyclic number.

It is not a de Polignac number, because 16153642261 - 2⁵ = 16153642229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16153642261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16157642261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8076821130 + 8076821131.

It is an arithmetic number, because the mean of its divisors is an integer number (8076821131).

Almost surely, 2^16153642261 is an apocalyptic number.

It is an amenable number.

16153642261 is a deficient number, since it is larger than the sum of its proper divisors (1).

16153642261 is an equidigital number, since it uses as much as digits as its factorization.

16153642261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The spelling of 16153642261 in words is "sixteen billion, one hundred fifty-three million, six hundred forty-two thousand, two hundred sixty-one".