145818633709 has 8 divisors (see below), whose sum is σ = 166653595008. Its totient is φ = 124984604400.

The previous prime is 145818633659. The next prime is 145818633743. The reversal of 145818633709 is 907336818541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145818633709 - 2¹⁷ = 145818502637 is a prime.

It is a super-2 number, since 2×145818633709² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145818633709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145818633769) 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, 142659 + ... + 558559.

It is an arithmetic number, because the mean of its divisors is an integer number (20831699376).

Almost surely, 2^145818633709 is an apocalyptic number.

It is an amenable number.

145818633709 is a deficient number, since it is larger than the sum of its proper divisors (20834961299).

145818633709 is an equidigital number, since it uses as much as digits as its factorization.

145818633709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465995.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 145818633709 in words is "one hundred forty-five billion, eight hundred eighteen million, six hundred thirty-three thousand, seven hundred nine".