16857653145 has 8 divisors (see below), whose sum is σ = 26972245056. Its totient is φ = 8990748336.

The previous prime is 16857653093. The next prime is 16857653147. The reversal of 16857653145 is 54135675861.

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

It is not a de Polignac number, because 16857653145 - 2⁷ = 16857653017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16857653147) 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, 561921757 + ... + 561921786.

It is an arithmetic number, because the mean of its divisors is an integer number (3371530632).

Almost surely, 2^16857653145 is an apocalyptic number.

16857653145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16857653145 is a deficient number, since it is larger than the sum of its proper divisors (10114591911).

16857653145 is a wasteful number, since it uses less digits than its factorization.

16857653145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123843551.

The product of its digits is 3024000, while the sum is 51.

The spelling of 16857653145 in words is "sixteen billion, eight hundred fifty-seven million, six hundred fifty-three thousand, one hundred forty-five".