16251048844801 has 4 divisors (see below), whose sum is σ = 16252037788932. Its totient is φ = 16250059900672.

The previous prime is 16251048844787. The next prime is 16251048844843. The reversal of 16251048844801 is 10844884015261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14193189738225 + 2057859106576 = 3767385^2 + 1434524^2 .

It is a cyclic number.

It is not a de Polignac number, because 16251048844801 - 2⁷ = 16251048844673 is a prime.

It is a super-2 number, since 2×16251048844801² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16251048844601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494447416 + ... + 494480281.

It is an arithmetic number, because the mean of its divisors is an integer number (4063009447233).

Almost surely, 2^{16251048844801} is an apocalyptic number.

It is an amenable number.

16251048844801 is a deficient number, since it is larger than the sum of its proper divisors (988944131).

16251048844801 is an equidigital number, since it uses as much as digits as its factorization.

16251048844801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988944130.

The product of its (nonzero) digits is 1966080, while the sum is 52.

The spelling of 16251048844801 in words is "sixteen trillion, two hundred fifty-one billion, forty-eight million, eight hundred forty-four thousand, eight hundred one".