16254693242 has 8 divisors (see below), whose sum is σ = 25816277556. Its totient is φ = 7649267392.

The previous prime is 16254693209. The next prime is 16254693277. The reversal of 16254693242 is 24239645261.

It can be written as a sum of positive squares in 2 ways, for example, as 15452727481 + 801965761 = 124309^2 + 28319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16254693193 and 16254693202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239039573 + ... + 239039640.

Almost surely, 2^16254693242 is an apocalyptic number.

16254693242 is a deficient number, since it is larger than the sum of its proper divisors (9561584314).

16254693242 is a wasteful number, since it uses less digits than its factorization.

16254693242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478079232.

The product of its digits is 622080, while the sum is 44.

The spelling of 16254693242 in words is "sixteen billion, two hundred fifty-four million, six hundred ninety-three thousand, two hundred forty-two".