149271621120 has 800 divisors, whose sum is σ = 560766697920. Its totient is φ = 37902090240.

The previous prime is 149271621101. The next prime is 149271621131. The reversal of 149271621120 is 21126172941.

149271621120 is a `hidden beast` number, since 1 + 4 + 9 + 2 + 7 + 1 + 621 + 1 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 619384200 + ... + 619384440.

Almost surely, 2^149271621120 is an apocalyptic number.

149271621120 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 149271621120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280383348960).

149271621120 is an abundant number, since it is smaller than the sum of its proper divisors (411495076800).

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

149271621120 is a wasteful number, since it uses less digits than its factorization.

149271621120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 149271621120 in words is "one hundred forty-nine billion, two hundred seventy-one million, six hundred twenty-one thousand, one hundred twenty".