16808772270 has 64 divisors (see below), whose sum is σ = 42730099776. Its totient is φ = 4217088000.

The previous prime is 16808772269. The next prime is 16808772271. The reversal of 16808772270 is 7227780861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16808772269) and next prime (16808772271).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16808772271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1973020 + ... + 1981520.

It is an arithmetic number, because the mean of its divisors is an integer number (667657809).

Almost surely, 2^16808772270 is an apocalyptic number.

16808772270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16808772270 is an abundant number, since it is smaller than the sum of its proper divisors (25921327506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16808772270 is a wasteful number, since it uses less digits than its factorization.

16808772270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12405.

The product of its (nonzero) digits is 526848, while the sum is 48.

The spelling of 16808772270 in words is "sixteen billion, eight hundred eight million, seven hundred seventy-two thousand, two hundred seventy".