16951406642 has 4 divisors (see below), whose sum is σ = 25427109966. Its totient is φ = 8475703320.

The previous prime is 16951406629. The next prime is 16951406657. The reversal of 16951406642 is 24660415961.

16951406642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 12566185801 + 4385220841 = 112099^2 + 66221^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16951406593 and 16951406602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4237851659 + ... + 4237851662.

Almost surely, 2^16951406642 is an apocalyptic number.

16951406642 is a deficient number, since it is larger than the sum of its proper divisors (8475703324).

16951406642 is an equidigital number, since it uses as much as digits as its factorization.

16951406642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8475703323.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 16951406642 in words is "sixteen billion, nine hundred fifty-one million, four hundred six thousand, six hundred forty-two".