149440625280 has 192 divisors, whose sum is σ = 517702648320. Its totient is φ = 39722219520.

The previous prime is 149440625179. The next prime is 149440625329. The reversal of 149440625280 is 82526044941.

It is a happy number.

149440625280 is a `hidden beast` number, since 14 + 9 + 4 + 4 + 0 + 625 + 2 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1749649 + ... + 1833071.

It is an arithmetic number, because the mean of its divisors is an integer number (2696367960).

Almost surely, 2^149440625280 is an apocalyptic number.

149440625280 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 149440625280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258851324160).

149440625280 is an abundant number, since it is smaller than the sum of its proper divisors (368262023040).

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

149440625280 is a wasteful number, since it uses less digits than its factorization.

149440625280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83759 (or 83744 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 149440625280 in words is "one hundred forty-nine billion, four hundred forty million, six hundred twenty-five thousand, two hundred eighty".