16401670001 has 4 divisors (see below), whose sum is σ = 17114786112. Its totient is φ = 15688553892.

The previous prime is 16401669997. The next prime is 16401670007. The reversal of 16401670001 is 10007610461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16401670001 - 2² = 16401669997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16401670007) 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, 356558021 + ... + 356558066.

It is an arithmetic number, because the mean of its divisors is an integer number (4278696528).

Almost surely, 2^16401670001 is an apocalyptic number.

It is an amenable number.

16401670001 is a deficient number, since it is larger than the sum of its proper divisors (713116111).

16401670001 is an equidigital number, since it uses as much as digits as its factorization.

16401670001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713116110.

The product of its (nonzero) digits is 1008, while the sum is 26.

The spelling of 16401670001 in words is "sixteen billion, four hundred one million, six hundred seventy thousand, one".