16251265393 has 16 divisors (see below), whose sum is σ = 18224616384. Its totient is φ = 14361312960.

The previous prime is 16251265367. The next prime is 16251265423. The reversal of 16251265393 is 39356215261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16251265393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16251265363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436746 + ... + 472492.

It is an arithmetic number, because the mean of its divisors is an integer number (1139038524).

Almost surely, 2^16251265393 is an apocalyptic number.

It is an amenable number.

16251265393 is a deficient number, since it is larger than the sum of its proper divisors (1973350991).

16251265393 is a wasteful number, since it uses less digits than its factorization.

16251265393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36912.

The product of its digits is 291600, while the sum is 43.

The spelling of 16251265393 in words is "sixteen billion, two hundred fifty-one million, two hundred sixty-five thousand, three hundred ninety-three".