16493396515 has 8 divisors (see below), whose sum is σ = 20956315680. Its totient is φ = 12418557312.

The previous prime is 16493396503. The next prime is 16493396537. The reversal of 16493396515 is 51569339461.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 16493396515 - 2¹³ = 16493388323 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97019895 + ... + 97020064.

It is an arithmetic number, because the mean of its divisors is an integer number (2619539460).

Almost surely, 2^16493396515 is an apocalyptic number.

16493396515 is a deficient number, since it is larger than the sum of its proper divisors (4462919165).

16493396515 is a wasteful number, since it uses less digits than its factorization.

16493396515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194039981.

The product of its digits is 2624400, while the sum is 52.

The spelling of 16493396515 in words is "sixteen billion, four hundred ninety-three million, three hundred ninety-six thousand, five hundred fifteen".