149871017214120 has 256 divisors, whose sum is σ = 460539549676800. Its totient is φ = 39009767546880.

The previous prime is 149871017214109. The next prime is 149871017214167. The reversal of 149871017214120 is 21412710178941.

It is a super-2 number, since 2×149871017214120² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 149871017214120.

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, 234427542 + ... + 235065978.

It is an arithmetic number, because the mean of its divisors is an integer number (1798982615925).

Almost surely, 2^{149871017214120} is an apocalyptic number.

149871017214120 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 149871017214120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230269774838400).

149871017214120 is an abundant number, since it is smaller than the sum of its proper divisors (310668532462680).

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

149871017214120 is a wasteful number, since it uses less digits than its factorization.

149871017214120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638828 (or 638824 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 48.

The spelling of 149871017214120 in words is "one hundred forty-nine trillion, eight hundred seventy-one billion, seventeen million, two hundred fourteen thousand, one hundred twenty".