16650601 has 8 divisors (see below), whose sum is σ = 18288000. Its totient is φ = 15033840.

The previous prime is 16650583. The next prime is 16650649. The reversal of 16650601 is 10605661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16650601 - 2²³ = 8261993 is a prime.

It is a super-2 number, since 2×16650601² = 554485027322402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16650691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3441 + ... + 6718.

It is an arithmetic number, because the mean of its divisors is an integer number (2286000).

Almost surely, 2^16650601 is an apocalyptic number.

16650601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16650601 is a deficient number, since it is larger than the sum of its proper divisors (1637399).

16650601 is a wasteful number, since it uses less digits than its factorization.

16650601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10319.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 16650601 is about 4080.5147959541. The cubic root of 16650601 is about 255.3543759325.

The spelling of 16650601 in words is "sixteen million, six hundred fifty thousand, six hundred one".