1550005150155 has 64 divisors (see below), whose sum is σ = 3110473433088. Its totient is φ = 640300671360.

The previous prime is 1550005150139. The next prime is 1550005150159. The reversal of 1550005150155 is 5510515000551.

It is not a de Polignac number, because 1550005150155 - 2⁴ = 1550005150139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1550005150159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3825067 + ... + 4210836.

It is an arithmetic number, because the mean of its divisors is an integer number (48601147392).

Almost surely, 2^{1550005150155} is an apocalyptic number.

1550005150155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1550005150155 is an abundant number, since it is smaller than the sum of its proper divisors (1560468282933).

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

1550005150155 is a wasteful number, since it uses less digits than its factorization.

1550005150155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036096.

The product of its (nonzero) digits is 15625, while the sum is 33.

The spelling of 1550005150155 in words is "one trillion, five hundred fifty billion, five million, one hundred fifty thousand, one hundred fifty-five".