16394640241 has 8 divisors (see below), whose sum is σ = 19016384960. Its totient is φ = 13842808848.

The previous prime is 16394640179. The next prime is 16394640247. The reversal of 16394640241 is 14204649361.

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 16394640241 - 2¹⁵ = 16394607473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16394640194 and 16394640203.

It is not an unprimeable number, because it can be changed into a prime (16394640247) 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, 17477826 + ... + 17478763.

It is an arithmetic number, because the mean of its divisors is an integer number (2377048120).

Almost surely, 2^16394640241 is an apocalyptic number.

It is an amenable number.

16394640241 is a deficient number, since it is larger than the sum of its proper divisors (2621744719).

16394640241 is an equidigital number, since it uses as much as digits as its factorization.

16394640241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34956663.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 16394640241 in words is "sixteen billion, three hundred ninety-four million, six hundred forty thousand, two hundred forty-one".