148021577440 has 48 divisors (see below), whose sum is σ = 381491979120. Its totient is φ = 53826027520.

The previous prime is 148021577419. The next prime is 148021577443. The reversal of 148021577440 is 44775120841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148021577443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42049825 + ... + 42053344.

It is an arithmetic number, because the mean of its divisors is an integer number (7947749565).

Almost surely, 2^148021577440 is an apocalyptic number.

148021577440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148021577440 is an abundant number, since it is smaller than the sum of its proper divisors (233470401680).

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

148021577440 is a wasteful number, since it uses less digits than its factorization.

148021577440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84103195 (or 84103187 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 43.

The spelling of 148021577440 in words is "one hundred forty-eight billion, twenty-one million, five hundred seventy-seven thousand, four hundred forty".