16757780993 has 8 divisors (see below), whose sum is σ = 17417801280. Its totient is φ = 16103238480.

The previous prime is 16757780989. The next prime is 16757781017. The reversal of 16757780993 is 39908775761.

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 16757780993 - 2² = 16757780989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16757780093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363205 + ... + 1375442.

It is an arithmetic number, because the mean of its divisors is an integer number (2177225160).

Almost surely, 2^16757780993 is an apocalyptic number.

It is an amenable number.

16757780993 is a deficient number, since it is larger than the sum of its proper divisors (660020287).

16757780993 is a wasteful number, since it uses less digits than its factorization.

16757780993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738887.

The product of its (nonzero) digits is 20003760, while the sum is 62.

The spelling of 16757780993 in words is "sixteen billion, seven hundred fifty-seven million, seven hundred eighty thousand, nine hundred ninety-three".