145561385684 has 48 divisors (see below), whose sum is σ = 316869973056. Its totient is φ = 57482073600.

The previous prime is 145561385653. The next prime is 145561385693. The reversal of 145561385684 is 486583165541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7474922 + ... + 7494369.

It is an arithmetic number, because the mean of its divisors is an integer number (6601457772).

Almost surely, 2^145561385684 is an apocalyptic number.

It is an amenable number.

145561385684 is an abundant number, since it is smaller than the sum of its proper divisors (171308587372).

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

145561385684 is a wasteful number, since it uses less digits than its factorization.

145561385684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14969336 (or 14969334 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 56.

The spelling of 145561385684 in words is "one hundred forty-five billion, five hundred sixty-one million, three hundred eighty-five thousand, six hundred eighty-four".