1616665053 has 16 divisors (see below), whose sum is σ = 2166912000. Its totient is φ = 1072113840.

The previous prime is 1616665051. The next prime is 1616665067. The reversal of 1616665053 is 3505666161.

It is not a de Polignac number, because 1616665053 - 2¹ = 1616665051 is a prime.

It is a super-3 number, since 3×1616665053³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616665051) 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, 488398 + ... + 491696.

It is an arithmetic number, because the mean of its divisors is an integer number (135432000).

Almost surely, 2^1616665053 is an apocalyptic number.

It is an amenable number.

1616665053 is a deficient number, since it is larger than the sum of its proper divisors (550246947).

1616665053 is a wasteful number, since it uses less digits than its factorization.

1616665053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 1616665053 is about 40207.7735394538. The cubic root of 1616665053 is about 1173.6538204162.

The spelling of 1616665053 in words is "one billion, six hundred sixteen million, six hundred sixty-five thousand, fifty-three".