1087871855616 has 1056 divisors, whose sum is σ = 4055771865600. Its totient is φ = 283596816384.

The previous prime is 1087871855611. The next prime is 1087871855633. The reversal of 1087871855616 is 6165581787801.

1087871855616 is a `hidden beast` number, since 1 + 0 + 8 + 7 + 8 + 7 + 1 + 8 + 5 + 5 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1087871855611) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2422876960 + ... + 2422877408.

Almost surely, 2^{1087871855616} is an apocalyptic number.

1087871855616 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 1087871855616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2027885932800).

1087871855616 is an abundant number, since it is smaller than the sum of its proper divisors (2967900009984).

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

1087871855616 is a wasteful number, since it uses less digits than its factorization.

1087871855616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 63.

The spelling of 1087871855616 in words is "one trillion, eighty-seven billion, eight hundred seventy-one million, eight hundred fifty-five thousand, six hundred sixteen".