16650844354 has 4 divisors (see below), whose sum is σ = 24976266534. Its totient is φ = 8325422176.

The previous prime is 16650844339. The next prime is 16650844369. The reversal of 16650844354 is 45344805661.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (16650844339) and next prime (16650844369).

It can be written as a sum of positive squares in only one way, i.e., 16479627129 + 171217225 = 128373^2 + 13085^2 .

It is a super-2 number, since 2×16650844354² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4162711087 + ... + 4162711090.

Almost surely, 2^16650844354 is an apocalyptic number.

16650844354 is a deficient number, since it is larger than the sum of its proper divisors (8325422180).

16650844354 is an equidigital number, since it uses as much as digits as its factorization.

16650844354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8325422179.

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 16650844354 in words is "sixteen billion, six hundred fifty million, eight hundred forty-four thousand, three hundred fifty-four".