155400340000 has 60 divisors (see below), whose sum is σ = 382308195654. Its totient is φ = 62160128000.

The previous prime is 155400339989. The next prime is 155400340009. The reversal of 155400340000 is 43004551.

It can be written as a sum of positive squares in 5 ways, for example, as 20502803344 + 134897536656 = 143188^2 + 367284^2 .

It is not an unprimeable number, because it can be changed into a prime (155400340009) 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, 3865009 + ... + 3905008.

Almost surely, 2^155400340000 is an apocalyptic number.

155400340000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155400340000 is an abundant number, since it is smaller than the sum of its proper divisors (226907855654).

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

155400340000 is an frugal number, since it uses more digits than its factorization.

155400340000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770047 (or 7770024 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 155400340000 its reverse (43004551), we get a palindrome (155443344551).

The spelling of 155400340000 in words is "one hundred fifty-five billion, four hundred million, three hundred forty thousand".