102187251056 has 90 divisors (see below), whose sum is σ = 231178589040. Its totient is φ = 43716231680.

The previous prime is 102187251037. The next prime is 102187251079. The reversal of 102187251056 is 650152781201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 468185 + ... + 650823.

Almost surely, 2^102187251056 is an apocalyptic number.

102187251056 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 102187251056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115589294520).

102187251056 is an abundant number, since it is smaller than the sum of its proper divisors (128991337984).

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

102187251056 is a wasteful number, since it uses less digits than its factorization.

102187251056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182703 (or 182669 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 38.

The spelling of 102187251056 in words is "one hundred two billion, one hundred eighty-seven million, two hundred fifty-one thousand, fifty-six".