1616514641 has 8 divisors (see below), whose sum is σ = 1848680064. Its totient is φ = 1384657920.

The previous prime is 1616514593. The next prime is 1616514659. The reversal of 1616514641 is 1464156161.

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-1616514641 is a prime.

It is a super-2 number, since 2×1616514641² = 5226239169134717762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616514671) 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, 65840 + ... + 86993.

It is an arithmetic number, because the mean of its divisors is an integer number (231085008).

Almost surely, 2^1616514641 is an apocalyptic number.

It is an amenable number.

1616514641 is a deficient number, since it is larger than the sum of its proper divisors (232165423).

1616514641 is a wasteful number, since it uses less digits than its factorization.

1616514641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154351.

The product of its digits is 17280, while the sum is 35.

The square root of 1616514641 is about 40205.9030616152. The cubic root of 1616514641 is about 1173.6174209792.

The spelling of 1616514641 in words is "one billion, six hundred sixteen million, five hundred fourteen thousand, six hundred forty-one".