16385428244658 has 64 divisors (see below), whose sum is σ = 38733269617152. Its totient is φ = 4564526695680.

The previous prime is 16385428244623. The next prime is 16385428244659. The reversal of 16385428244658 is 85644282458361.

It is a super-2 number, since 2×16385428244658² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16385428244659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169763016 + ... + 169859507.

It is an arithmetic number, because the mean of its divisors is an integer number (605207337768).

Almost surely, 2^{16385428244658} is an apocalyptic number.

16385428244658 is an abundant number, since it is smaller than the sum of its proper divisors (22347841372494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16385428244658 is a wasteful number, since it uses less digits than its factorization.

16385428244658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339622599.

The product of its digits is 353894400, while the sum is 66.

The spelling of 16385428244658 in words is "sixteen trillion, three hundred eighty-five billion, four hundred twenty-eight million, two hundred forty-four thousand, six hundred fifty-eight".