145858561625 has 16 divisors (see below), whose sum is σ = 208035984000. Its totient is φ = 100017298800.

The previous prime is 145858561601. The next prime is 145858561633. The reversal of 145858561625 is 526165858541.

145858561625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-145858561625 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83346875 + ... + 83348624.

It is an arithmetic number, because the mean of its divisors is an integer number (13002249000).

Almost surely, 2^145858561625 is an apocalyptic number.

It is an amenable number.

145858561625 is a deficient number, since it is larger than the sum of its proper divisors (62177422375).

145858561625 is an equidigital number, since it uses as much as digits as its factorization.

145858561625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166695521 (or 166695511 counting only the distinct ones).

The product of its digits is 11520000, while the sum is 56.

The spelling of 145858561625 in words is "one hundred forty-five billion, eight hundred fifty-eight million, five hundred sixty-one thousand, six hundred twenty-five".