16257311842 has 8 divisors (see below), whose sum is σ = 24561406800. Its totient is φ = 8070176244.

The previous prime is 16257311821. The next prime is 16257311843. The reversal of 16257311842 is 24811375261.

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 = 16257311795 and 16257311804.

It is not an unprimeable number, because it can be changed into a prime (16257311843) 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, 29239492 + ... + 29240047.

It is an arithmetic number, because the mean of its divisors is an integer number (3070175850).

Almost surely, 2^16257311842 is an apocalyptic number.

16257311842 is a deficient number, since it is larger than the sum of its proper divisors (8304094958).

16257311842 is a wasteful number, since it uses less digits than its factorization.

16257311842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58479680.

The product of its digits is 80640, while the sum is 40.

The spelling of 16257311842 in words is "sixteen billion, two hundred fifty-seven million, three hundred eleven thousand, eight hundred forty-two".