16253277443 has 4 divisors (see below), whose sum is σ = 17503529568. Its totient is φ = 15003025320.

The previous prime is 16253277437. The next prime is 16253277511. The reversal of 16253277443 is 34477235261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34477235261 = 7 ⋅4925319323.

It is a cyclic number.

It is not a de Polignac number, because 16253277443 - 2¹² = 16253273347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16253277394 and 16253277403.

It is not an unprimeable number, because it can be changed into a prime (16253277043) 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, 625126043 + ... + 625126068.

It is an arithmetic number, because the mean of its divisors is an integer number (4375882392).

Almost surely, 2^16253277443 is an apocalyptic number.

16253277443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16253277443 is a deficient number, since it is larger than the sum of its proper divisors (1250252125).

16253277443 is a wasteful number, since it uses less digits than its factorization.

16253277443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250252124.

The product of its digits is 846720, while the sum is 44.

The spelling of 16253277443 in words is "sixteen billion, two hundred fifty-three million, two hundred seventy-seven thousand, four hundred forty-three".