155858810016 has 576 divisors, whose sum is σ = 539516775168. Its totient is φ = 38351978496.

The previous prime is 155858809963. The next prime is 155858810071. The reversal of 155858810016 is 610018858551.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 230219470 + ... + 230220146.

It is an arithmetic number, because the mean of its divisors is an integer number (936661068).

Almost surely, 2^155858810016 is an apocalyptic number.

155858810016 is a gapful number since it is divisible by the number (16) 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 155858810016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269758387584).

155858810016 is an abundant number, since it is smaller than the sum of its proper divisors (383657965152).

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

155858810016 is a wasteful number, since it uses less digits than its factorization.

155858810016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 48.

The spelling of 155858810016 in words is "one hundred fifty-five billion, eight hundred fifty-eight million, eight hundred ten thousand, sixteen".