145898657688 has 64 divisors (see below), whose sum is σ = 417026511360. Its totient is φ = 41668010496.

The previous prime is 145898657657. The next prime is 145898657701. The reversal of 145898657688 is 886756898541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227856 + ... + 586272.

It is an arithmetic number, because the mean of its divisors is an integer number (6516039240).

Almost surely, 2^145898657688 is an apocalyptic number.

It is an amenable number.

145898657688 is an abundant number, since it is smaller than the sum of its proper divisors (271127853672).

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

145898657688 is a wasteful number, since it uses less digits than its factorization.

145898657688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360856 (or 360852 counting only the distinct ones).

The product of its digits is 928972800, while the sum is 75.

The spelling of 145898657688 in words is "one hundred forty-five billion, eight hundred ninety-eight million, six hundred fifty-seven thousand, six hundred eighty-eight".