145657581144 has 64 divisors (see below), whose sum is σ = 379642982400. Its totient is φ = 46528599936.

The previous prime is 145657581073. The next prime is 145657581227. The reversal of 145657581144 is 441185756541.

145657581144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145657581144² (a number of 23 digits) contains 22 as substring.

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, 1276824 + ... + 1386215.

It is an arithmetic number, because the mean of its divisors is an integer number (5931921600).

Almost surely, 2^145657581144 is an apocalyptic number.

It is an amenable number.

145657581144 is an abundant number, since it is smaller than the sum of its proper divisors (233985401256).

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

145657581144 is a wasteful number, since it uses less digits than its factorization.

145657581144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663144 (or 2663140 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 51.

The spelling of 145657581144 in words is "one hundred forty-five billion, six hundred fifty-seven million, five hundred eighty-one thousand, one hundred forty-four".