105545140000 has 60 divisors (see below), whose sum is σ = 259656925374. Its totient is φ = 42218048000.

The previous prime is 105545139989. The next prime is 105545140007. The reversal of 105545140000 is 41545501.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 333135504 + 105212004496 = 18252^2 + 324364^2 .

It is a super-2 number, since 2×105545140000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (105545140007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2618629 + ... + 2658628.

Almost surely, 2^105545140000 is an apocalyptic number.

105545140000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105545140000 is an abundant number, since it is smaller than the sum of its proper divisors (154111785374).

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

105545140000 is an frugal number, since it uses more digits than its factorization.

105545140000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277287 (or 5277264 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 105545140000 its reverse (41545501), we get a palindrome (105586685501).

The spelling of 105545140000 in words is "one hundred five billion, five hundred forty-five million, one hundred forty thousand".