16228500077 has 4 divisors (see below), whose sum is σ = 17082631680. Its totient is φ = 15374368476.

The previous prime is 16228500007. The next prime is 16228500109. The reversal of 16228500077 is 77000582261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77000582261 = 192631 ⋅399731.

It is a cyclic number.

It is not a de Polignac number, because 16228500077 - 2¹² = 16228495981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16228500077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16228500007) 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, 427065773 + ... + 427065810.

It is an arithmetic number, because the mean of its divisors is an integer number (4270657920).

Almost surely, 2^16228500077 is an apocalyptic number.

It is an amenable number.

16228500077 is a deficient number, since it is larger than the sum of its proper divisors (854131603).

16228500077 is an equidigital number, since it uses as much as digits as its factorization.

16228500077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854131602.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 16228500077 in words is "sixteen billion, two hundred twenty-eight million, five hundred thousand, seventy-seven".