102019065860 has 24 divisors (see below), whose sum is σ = 214297039320. Its totient is φ = 40796769024.

The previous prime is 102019065851. The next prime is 102019065901. The reversal of 102019065860 is 68560910201.

It can be written as a sum of positive squares in 4 ways, for example, as 55566747076 + 46452318784 = 235726^2 + 215528^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601319 + ... + 752078.

It is an arithmetic number, because the mean of its divisors is an integer number (8929043305).

Almost surely, 2^102019065860 is an apocalyptic number.

102019065860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102019065860 is an abundant number, since it is smaller than the sum of its proper divisors (112277973460).

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

102019065860 is a wasteful number, since it uses less digits than its factorization.

102019065860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357175 (or 1357173 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 102019065860 in words is "one hundred two billion, nineteen million, sixty-five thousand, eight hundred sixty".