102015440532 has 36 divisors (see below), whose sum is σ = 259514877076. Its totient is φ = 33788551680.

The previous prime is 102015440521. The next prime is 102015440563. The reversal of 102015440532 is 235044510201.

102015440532 is a `hidden beast` number, since 1 + 0 + 201 + 54 + 405 + 3 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28397642256 + 73617798276 = 168516^2 + 271326^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 102015440496 and 102015440505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9019069 + ... + 9030372.

Almost surely, 2^102015440532 is an apocalyptic number.

102015440532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102015440532 is an abundant number, since it is smaller than the sum of its proper divisors (157499436544).

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

102015440532 is a wasteful number, since it uses less digits than its factorization.

102015440532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18049608 (or 18049603 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 102015440532 its reverse (235044510201), we get a palindrome (337059950733).

The spelling of 102015440532 in words is "one hundred two billion, fifteen million, four hundred forty thousand, five hundred thirty-two".