10661495130000 has 1800 divisors, whose sum is σ = 45538903761120. Its totient is φ = 2384553600000.

The previous prime is 10661495129981. The next prime is 10661495130049. The reversal of 10661495130000 is 3159416601.

10661495130000 is a `hidden beast` number, since 1 + 0 + 6 + 614 + 9 + 5 + 1 + 30 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1800).

It is a super-2 number, since 2×10661495130000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 5521229035 + ... + 5521230965.

Almost surely, 2^{10661495130000} is an apocalyptic number.

10661495130000 is a gapful number since it is divisible by the number (10) 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 10661495130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22769451880560).

10661495130000 is an abundant number, since it is smaller than the sum of its proper divisors (34877408631120).

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

10661495130000 is a wasteful number, since it uses less digits than its factorization.

10661495130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 10661495130000 in words is "ten trillion, six hundred sixty-one billion, four hundred ninety-five million, one hundred thirty thousand".