155116226250 has 240 divisors, whose sum is σ = 446539661568. Its totient is φ = 38815920000.

The previous prime is 155116226191. The next prime is 155116226297. The reversal of 155116226250 is 52622611551.

155116226250 is a `hidden beast` number, since 1 + 5 + 5 + 1 + 1 + 6 + 22 + 625 + 0 = 666.

It is a super-2 number, since 2×155116226250² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 13708095 + ... + 13719405.

Almost surely, 2^155116226250 is an apocalyptic number.

155116226250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155116226250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223269830784).

155116226250 is an abundant number, since it is smaller than the sum of its proper divisors (291423435318).

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

155116226250 is a wasteful number, since it uses less digits than its factorization.

155116226250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11415 (or 11397 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 155116226250 in words is "one hundred fifty-five billion, one hundred sixteen million, two hundred twenty-six thousand, two hundred fifty".