16263433436261 has 8 divisors (see below), whose sum is σ = 17941274884800. Its totient is φ = 14618816571040.

The previous prime is 16263433436233. The next prime is 16263433436267.

16263433436261 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-16263433436261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16263433436267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8306144801 + ... + 8306146758.

It is an arithmetic number, because the mean of its divisors is an integer number (2242659360600).

Almost surely, 2^{16263433436261} is an apocalyptic number.

16263433436261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16263433436261 is a deficient number, since it is larger than the sum of its proper divisors (1677841448539).

16263433436261 is a wasteful number, since it uses less digits than its factorization.

16263433436261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16612291659.

The product of its digits is 6718464, while the sum is 50.

The spelling of 16263433436261 in words is "sixteen trillion, two hundred sixty-three billion, four hundred thirty-three million, four hundred thirty-six thousand, two hundred sixty-one".