102432144555 has 24 divisors (see below), whose sum is σ = 191206670928. Its totient is φ = 50428132416.

The previous prime is 102432144547. The next prime is 102432144589. The reversal of 102432144555 is 555441234201.

102432144555 is a `hidden beast` number, since 1 + 0 + 2 + 43 + 21 + 44 + 555 = 666.

It is not a de Polignac number, because 102432144555 - 2³ = 102432144547 is a prime.

It is a super-2 number, since 2×102432144555² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87548257 + ... + 87549426.

It is an arithmetic number, because the mean of its divisors is an integer number (7966944622).

Almost surely, 2^102432144555 is an apocalyptic number.

102432144555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102432144555 is a deficient number, since it is larger than the sum of its proper divisors (88774526373).

102432144555 is a wasteful number, since it uses less digits than its factorization.

102432144555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175097707 (or 175097704 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 102432144555 its reverse (555441234201), we get a palindrome (657873378756).

The spelling of 102432144555 in words is "one hundred two billion, four hundred thirty-two million, one hundred forty-four thousand, five hundred fifty-five".