16690465 has 8 divisors (see below), whose sum is σ = 21849408. Its totient is φ = 12138480.

The previous prime is 16690463. The next prime is 16690469. The reversal of 16690465 is 56409661.

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

It is not a de Polignac number, because 16690465 - 2¹ = 16690463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16690463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151677 + ... + 151786.

It is an arithmetic number, because the mean of its divisors is an integer number (2731176).

Almost surely, 2^16690465 is an apocalyptic number.

It is an amenable number.

16690465 is a deficient number, since it is larger than the sum of its proper divisors (5158943).

16690465 is a wasteful number, since it uses less digits than its factorization.

16690465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303479.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 16690465 is about 4085.3965535796. The cubic root of 16690465 is about 255.5579988914.

The spelling of 16690465 in words is "sixteen million, six hundred ninety thousand, four hundred sixty-five".