155244140000 has 60 divisors (see below), whose sum is σ = 381923920224. Its totient is φ = 62097648000.

The previous prime is 155244139987. The next prime is 155244140017. The reversal of 155244140000 is 41442551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3861104 + ... + 3901103.

Almost surely, 2^155244140000 is an apocalyptic number.

155244140000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155244140000 is an abundant number, since it is smaller than the sum of its proper divisors (226679780224).

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

155244140000 is an frugal number, since it uses more digits than its factorization.

155244140000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7762237 (or 7762214 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 155244140000 its reverse (41442551), we get a palindrome (155285582551).

The spelling of 155244140000 in words is "one hundred fifty-five billion, two hundred forty-four million, one hundred forty thousand".