1616591663039 has 8 divisors (see below), whose sum is σ = 1626223029120. Its totient is φ = 1606966965400.

The previous prime is 1616591663009. The next prime is 1616591663077. The reversal of 1616591663039 is 9303661956161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1616591663039 is a prime.

It is a super-2 number, since 2×1616591663039² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616591663009) 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, 1180397 + ... + 2150934.

It is an arithmetic number, because the mean of its divisors is an integer number (203277878640).

Almost surely, 2^{1616591663039} is an apocalyptic number.

1616591663039 is a deficient number, since it is larger than the sum of its proper divisors (9631366081).

1616591663039 is a wasteful number, since it uses less digits than its factorization.

1616591663039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334221.

The product of its (nonzero) digits is 4723920, while the sum is 56.

The spelling of 1616591663039 in words is "one trillion, six hundred sixteen billion, five hundred ninety-one million, six hundred sixty-three thousand, thirty-nine".