1616866319627 has 4 divisors (see below), whose sum is σ = 1741240651920. Its totient is φ = 1492491987336.

The previous prime is 1616866319587. The next prime is 1616866319633. The reversal of 1616866319627 is 7269136686161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1616866319627 - 2³⁴ = 1599686450443 is a prime.

It is a super-2 number, since 2×1616866319627² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1616866319627.

It is not an unprimeable number, because it can be changed into a prime (1616866319657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62187166127 + ... + 62187166152.

It is an arithmetic number, because the mean of its divisors is an integer number (435310162980).

Almost surely, 2^{1616866319627} is an apocalyptic number.

1616866319627 is a deficient number, since it is larger than the sum of its proper divisors (124374332293).

1616866319627 is a wasteful number, since it uses less digits than its factorization.

1616866319627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124374332292.

The product of its digits is 23514624, while the sum is 62.

The spelling of 1616866319627 in words is "one trillion, six hundred sixteen billion, eight hundred sixty-six million, three hundred nineteen thousand, six hundred twenty-seven".