16612684043785 has 16 divisors (see below), whose sum is σ = 20320419892032. Its totient is φ = 13034603620800.

The previous prime is 16612684043737. The next prime is 16612684043789. The reversal of 16612684043785 is 58734048621661.

It is not a de Polignac number, because 16612684043785 - 2²¹ = 16612681946633 is a prime.

It is a super-2 number, since 2×16612684043785² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16612684043789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78378051 + ... + 78589720.

It is an arithmetic number, because the mean of its divisors is an integer number (1270026243252).

Almost surely, 2^{16612684043785} is an apocalyptic number.

It is an amenable number.

16612684043785 is a deficient number, since it is larger than the sum of its proper divisors (3707735848247).

16612684043785 is a wasteful number, since it uses less digits than its factorization.

16612684043785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156968184.

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 16612684043785 in words is "sixteen trillion, six hundred twelve billion, six hundred eighty-four million, forty-three thousand, seven hundred eighty-five".