16211057 has 8 divisors (see below), whose sum is σ = 16593984. Its totient is φ = 15831088.

The previous prime is 16211053. The next prime is 16211059. The reversal of 16211057 is 75011261.

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 16211057 - 2² = 16211053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16211053) 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, 13358 + ... + 14520.

It is an arithmetic number, because the mean of its divisors is an integer number (2074248).

Almost surely, 2^16211057 is an apocalyptic number.

It is an amenable number.

16211057 is a deficient number, since it is larger than the sum of its proper divisors (382927).

16211057 is a wasteful number, since it uses less digits than its factorization.

16211057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 16211057 is about 4026.2956920723. The cubic root of 16211057 is about 253.0873533810.

The spelling of 16211057 in words is "sixteen million, two hundred eleven thousand, fifty-seven".