16255055021501 has 2 divisors, whose sum is σ = 16255055021502. Its totient is φ = 16255055021500.

The previous prime is 16255055021489. The next prime is 16255055021593. The reversal of 16255055021501 is 10512055055261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15749428788025 + 505626233476 = 3968555^2 + 711074^2 .

It is a cyclic number.

It is not a de Polignac number, because 16255055021501 - 2¹⁴ = 16255055005117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16255055621501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8127527510750 + 8127527510751.

It is an arithmetic number, because the mean of its divisors is an integer number (8127527510751).

Almost surely, 2^{16255055021501} is an apocalyptic number.

It is an amenable number.

16255055021501 is a deficient number, since it is larger than the sum of its proper divisors (1).

16255055021501 is an equidigital number, since it uses as much as digits as its factorization.

16255055021501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75000, while the sum is 38.

The spelling of 16255055021501 in words is "sixteen trillion, two hundred fifty-five billion, fifty-five million, twenty-one thousand, five hundred one".