149447153520 has 320 divisors, whose sum is σ = 607279226880. Its totient is φ = 33057331200.

The previous prime is 149447153507. The next prime is 149447153539. The reversal of 149447153520 is 25351744941.

149447153520 is a `hidden beast` number, since 1 + 4 + 9 + 4 + 4 + 71 + 53 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 309300 + ... + 628140.

It is an arithmetic number, because the mean of its divisors is an integer number (1897747584).

Almost surely, 2^149447153520 is an apocalyptic number.

149447153520 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 149447153520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303639613440).

149447153520 is an abundant number, since it is smaller than the sum of its proper divisors (457832073360).

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

149447153520 is a wasteful number, since it uses less digits than its factorization.

149447153520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318901 (or 318889 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 149447153520 in words is "one hundred forty-nine billion, four hundred forty-seven million, one hundred fifty-three thousand, five hundred twenty".