145023233658 has 16 divisors (see below), whose sum is σ = 290059332096. Its totient is φ = 48338933760.

The previous prime is 145023233639. The next prime is 145023233659. The reversal of 145023233658 is 856332320541.

145023233658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (145023233659) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 386266 + ... + 662757.

It is an arithmetic number, because the mean of its divisors is an integer number (18128708256).

Almost surely, 2^145023233658 is an apocalyptic number.

145023233658 is an abundant number, since it is smaller than the sum of its proper divisors (145036098438).

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

145023233658 is a wasteful number, since it uses less digits than its factorization.

145023233658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072069.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 145023233658 in words is "one hundred forty-five billion, twenty-three million, two hundred thirty-three thousand, six hundred fifty-eight".