16425646246 has 4 divisors (see below), whose sum is σ = 24638469372. Its totient is φ = 8212823122.

The previous prime is 16425646241. The next prime is 16425646249. The reversal of 16425646246 is 64264652461.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 16425646196 and 16425646205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16425646241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4106411560 + ... + 4106411563.

It is an arithmetic number, because the mean of its divisors is an integer number (6159617343).

Almost surely, 2^16425646246 is an apocalyptic number.

16425646246 is a deficient number, since it is larger than the sum of its proper divisors (8212823126).

16425646246 is an equidigital number, since it uses as much as digits as its factorization.

16425646246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212823125.

The product of its digits is 1658880, while the sum is 46.

The spelling of 16425646246 in words is "sixteen billion, four hundred twenty-five million, six hundred forty-six thousand, two hundred forty-six".