155140234000 has 40 divisors (see below), whose sum is σ = 375129090648. Its totient is φ = 62056092800.

The previous prime is 155140233977. The next prime is 155140234001. The reversal of 155140234000 is 432041551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 39740416 + 155100493584 = 6304^2 + 393828^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 (155140234001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38783059 + ... + 38787058.

Almost surely, 2^155140234000 is an apocalyptic number.

155140234000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155140234000 is an abundant number, since it is smaller than the sum of its proper divisors (219988856648).

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

155140234000 is an equidigital number, since it uses as much as digits as its factorization.

155140234000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77570140 (or 77570124 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 155140234000 its reverse (432041551), we get a palindrome (155572275551).

The spelling of 155140234000 in words is "one hundred fifty-five billion, one hundred forty million, two hundred thirty-four thousand".