155000016120 has 64 divisors (see below), whose sum is σ = 480000061440. Its totient is φ = 40000003200.

The previous prime is 155000016113. The next prime is 155000016133. The reversal of 155000016120 is 21610000551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20829616 + ... + 20837055.

It is an arithmetic number, because the mean of its divisors is an integer number (7500000960).

Almost surely, 2^155000016120 is an apocalyptic number.

155000016120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155000016120 is an abundant number, since it is smaller than the sum of its proper divisors (325000045320).

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

155000016120 is a wasteful number, since it uses less digits than its factorization.

155000016120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41666716 (or 41666712 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 155000016120 its reverse (21610000551), we get a palindrome (176610016671).

The spelling of 155000016120 in words is "one hundred fifty-five billion, sixteen thousand, one hundred twenty".