16766772352 has 32 divisors (see below), whose sum is σ = 36439153200. Its totient is φ = 7621259520.

The previous prime is 16766772343. The next prime is 16766772353. The reversal of 16766772352 is 25327766761.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×16766772352² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16766772352.

It is not an unprimeable number, because it can be changed into a prime (16766772353) 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, 5952702 + ... + 5955517.

Almost surely, 2^16766772352 is an apocalyptic number.

It is an amenable number.

16766772352 is an abundant number, since it is smaller than the sum of its proper divisors (19672380848).

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

16766772352 is a wasteful number, since it uses less digits than its factorization.

16766772352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11908244 (or 11908232 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 52.

The spelling of 16766772352 in words is "sixteen billion, seven hundred sixty-six million, seven hundred seventy-two thousand, three hundred fifty-two".