1087121016 has 96 divisors (see below), whose sum is σ = 3017664000. Its totient is φ = 353445120.

The previous prime is 1087120997. The next prime is 1087121017. The reversal of 1087121016 is 6101217801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087121017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 556810 + ... + 558758.

It is an arithmetic number, because the mean of its divisors is an integer number (31434000).

Almost surely, 2^1087121016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1087121016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1508832000).

1087121016 is an abundant number, since it is smaller than the sum of its proper divisors (1930542984).

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

1087121016 is a wasteful number, since it uses less digits than its factorization.

1087121016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149 (or 2142 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The square root of 1087121016 is about 32971.5182543965. The cubic root of 1087121016 is about 1028.2355867177.

Adding to 1087121016 its reverse (6101217801), we get a palindrome (7188338817).

The spelling of 1087121016 in words is "one billion, eighty-seven million, one hundred twenty-one thousand, sixteen".