145655195904 has 81 divisors (see below), whose sum is σ = 420012662979. Its totient is φ = 48545625600.

The previous prime is 145655195899. The next prime is 145655195911. The reversal of 145655195904 is 409591556541.

The square root of 145655195904 is 381648.

It is a perfect power (a square), and thus also a powerful number.

145655195904 is a `hidden beast` number, since 1 + 45 + 6 + 5 + 5 + 1 + 9 + 590 + 4 = 666.

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 8 ways as a sum of consecutive naturals, for example, 18315129 + ... + 18323079.

Almost surely, 2^145655195904 is an apocalyptic number.

145655195904 is the 381648-th square number.

It is an amenable number.

145655195904 is an abundant number, since it is smaller than the sum of its proper divisors (274357467075).

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

145655195904 is an frugal number, since it uses more digits than its factorization.

145655195904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15924 (or 7956 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 54.

The spelling of 145655195904 in words is "one hundred forty-five billion, six hundred fifty-five million, one hundred ninety-five thousand, nine hundred four".