16997201051 has 4 divisors (see below), whose sum is σ = 17891790600. Its totient is φ = 16102611504.

The previous prime is 16997201009. The next prime is 16997201059. The reversal of 16997201051 is 15010279961.

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

It is a cyclic number.

It is not a de Polignac number, because 16997201051 - 2¹⁰ = 16997200027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16997201059) 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, 447294746 + ... + 447294783.

It is an arithmetic number, because the mean of its divisors is an integer number (4472947650).

Almost surely, 2^16997201051 is an apocalyptic number.

16997201051 is a deficient number, since it is larger than the sum of its proper divisors (894589549).

16997201051 is an equidigital number, since it uses as much as digits as its factorization.

16997201051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894589548.

The product of its (nonzero) digits is 34020, while the sum is 41.

The spelling of 16997201051 in words is "sixteen billion, nine hundred ninety-seven million, two hundred one thousand, fifty-one".