145504020224988 has 72 divisors (see below), whose sum is σ = 367952102918400. Its totient is φ = 48481525640736.

The previous prime is 145504020224977. The next prime is 145504020225007. The reversal of 145504020224988 is 889422020405541.

It is a happy number.

145504020224988 is a `hidden beast` number, since 1 + 4 + 5 + 5 + 0 + 402 + 0 + 224 + 9 + 8 + 8 = 666.

145504020224988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 3164552583 + ... + 3164598561.

Almost surely, 2^{145504020224988} is an apocalyptic number.

145504020224988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145504020224988 is an abundant number, since it is smaller than the sum of its proper divisors (222448082693412).

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

145504020224988 is a wasteful number, since it uses less digits than its factorization.

145504020224988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79991 (or 79986 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 54.

The spelling of 145504020224988 in words is "one hundred forty-five trillion, five hundred four billion, twenty million, two hundred twenty-four thousand, nine hundred eighty-eight".