16287912653 has 4 divisors (see below), whose sum is σ = 17246025180. Its totient is φ = 15329800128.

The previous prime is 16287912649. The next prime is 16287912677. The reversal of 16287912653 is 35621978261.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7384480489 + 8903432164 = 85933^2 + 94358^2 .

It is a cyclic number.

It is not a de Polignac number, because 16287912653 - 2² = 16287912649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16287972653) 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, 479056238 + ... + 479056271.

It is an arithmetic number, because the mean of its divisors is an integer number (4311506295).

Almost surely, 2^16287912653 is an apocalyptic number.

It is an amenable number.

16287912653 is a deficient number, since it is larger than the sum of its proper divisors (958112527).

16287912653 is an equidigital number, since it uses as much as digits as its factorization.

16287912653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958112526.

The product of its digits is 1088640, while the sum is 50.

The spelling of 16287912653 in words is "sixteen billion, two hundred eighty-seven million, nine hundred twelve thousand, six hundred fifty-three".