1161510101616 has 80 divisors (see below), whose sum is σ = 3030698835360. Its totient is φ = 383283225600.

The previous prime is 1161510101497. The next prime is 1161510101617. The reversal of 1161510101616 is 6161010151611.

It is a super-2 number, since 2×1161510101616² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161510101617) 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, 50548306 + ... + 50571278.

It is an arithmetic number, because the mean of its divisors is an integer number (37883735442).

Almost surely, 2^{1161510101616} is an apocalyptic number.

1161510101616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161510101616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515349417680).

1161510101616 is an abundant number, since it is smaller than the sum of its proper divisors (1869188733744).

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

1161510101616 is a wasteful number, since it uses less digits than its factorization.

1161510101616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33514 (or 33508 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 30.

The spelling of 1161510101616 in words is "one trillion, one hundred sixty-one billion, five hundred ten million, one hundred one thousand, six hundred sixteen".