11116661511510 has 40 divisors (see below), whose sum is σ = 29891467622016. Its totient is φ = 2964443069520.

The previous prime is 11116661511503. The next prime is 11116661511541. The reversal of 11116661511510 is 1511516661111.

It is a super-2 number, since 2×11116661511510² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6862135926 + ... + 6862137545.

Almost surely, 2^{11116661511510} is an apocalyptic number.

11116661511510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11116661511510 is an abundant number, since it is smaller than the sum of its proper divisors (18774806110506).

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

11116661511510 is a wasteful number, since it uses less digits than its factorization.

11116661511510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13724273490 (or 13724273481 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 36.

The spelling of 11116661511510 in words is "eleven trillion, one hundred sixteen billion, six hundred sixty-one million, five hundred eleven thousand, five hundred ten".