145623417216 has 64 divisors (see below), whose sum is σ = 387291164400. Its totient is φ = 48481034240.

The previous prime is 145623417167. The next prime is 145623417217. The reversal of 145623417216 is 612714326541.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145623417217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76276 + ... + 545036.

Almost surely, 2^145623417216 is an apocalyptic number.

145623417216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145623417216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193645582200).

145623417216 is an abundant number, since it is smaller than the sum of its proper divisors (241667747184).

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

145623417216 is an equidigital number, since it uses as much as digits as its factorization.

145623417216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469587 (or 469575 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The spelling of 145623417216 in words is "one hundred forty-five billion, six hundred twenty-three million, four hundred seventeen thousand, two hundred sixteen".