1611001655016 has 64 divisors (see below), whose sum is σ = 4368971476800. Its totient is φ = 492074608128.

The previous prime is 1611001654987. The next prime is 1611001655047. The reversal of 1611001655016 is 6105561001161.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18802026 + ... + 18887513.

It is an arithmetic number, because the mean of its divisors is an integer number (68265179325).

Almost surely, 2^{1611001655016} is an apocalyptic number.

It is an amenable number.

1611001655016 is an abundant number, since it is smaller than the sum of its proper divisors (2757969821784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1611001655016 is a wasteful number, since it uses less digits than its factorization.

1611001655016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37689698 (or 37689694 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 33.

Adding to 1611001655016 its reverse (6105561001161), we get a palindrome (7716562656177).

The spelling of 1611001655016 in words is "one trillion, six hundred eleven billion, one million, six hundred fifty-five thousand, sixteen".