155100244040 has 64 divisors (see below), whose sum is σ = 399495456000. Its totient is φ = 53088392448.

The previous prime is 155100244027. The next prime is 155100244043. The reversal of 155100244040 is 40442001551.

It is not an unprimeable number, because it can be changed into a prime (155100244043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294659 + ... + 630098.

It is an arithmetic number, because the mean of its divisors is an integer number (6242116500).

Almost surely, 2^155100244040 is an apocalyptic number.

155100244040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155100244040 is an abundant number, since it is smaller than the sum of its proper divisors (244395211960).

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

155100244040 is a wasteful number, since it uses less digits than its factorization.

155100244040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925374 (or 925370 counting only the distinct ones).

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

Adding to 155100244040 its reverse (40442001551), we get a palindrome (195542245591).

The spelling of 155100244040 in words is "one hundred fifty-five billion, one hundred million, two hundred forty-four thousand, forty".