155165875113720 has 256 divisors, whose sum is σ = 482546915020800. Its totient is φ = 39873725521920.

The previous prime is 155165875113649. The next prime is 155165875113749. The reversal of 155165875113720 is 27311578561551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 842335386 + ... + 842519574.

It is an arithmetic number, because the mean of its divisors is an integer number (1884948886800).

Almost surely, 2^{155165875113720} is an apocalyptic number.

155165875113720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155165875113720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241273457510400).

155165875113720 is an abundant number, since it is smaller than the sum of its proper divisors (327381039907080).

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

155165875113720 is a wasteful number, since it uses less digits than its factorization.

155165875113720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185190 (or 185186 counting only the distinct ones).

The product of its (nonzero) digits is 8820000, while the sum is 57.

The spelling of 155165875113720 in words is "one hundred fifty-five trillion, one hundred sixty-five billion, eight hundred seventy-five million, one hundred thirteen thousand, seven hundred twenty".