145575587780 has 24 divisors (see below), whose sum is σ = 349381411008. Its totient is φ = 49911630048.

The previous prime is 145575587777. The next prime is 145575587797. The reversal of 145575587780 is 87785575541.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519912674 + ... + 519912953.

It is an arithmetic number, because the mean of its divisors is an integer number (14557558792).

Almost surely, 2^145575587780 is an apocalyptic number.

145575587780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145575587780 is an abundant number, since it is smaller than the sum of its proper divisors (203805823228).

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

145575587780 is a wasteful number, since it uses less digits than its factorization.

145575587780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039825643 (or 1039825641 counting only the distinct ones).

The product of its (nonzero) digits is 54880000, while the sum is 62.

The spelling of 145575587780 in words is "one hundred forty-five billion, five hundred seventy-five million, five hundred eighty-seven thousand, seven hundred eighty".