145643661303 has 32 divisors (see below), whose sum is σ = 222659351040. Its totient is φ = 82953002880.

The previous prime is 145643661257. The next prime is 145643661389. The reversal of 145643661303 is 303166346541.

It is not a de Polignac number, because 145643661303 - 2⁹ = 145643660791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145643662303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10877673 + ... + 10891053.

It is an arithmetic number, because the mean of its divisors is an integer number (6958104720).

Almost surely, 2^145643661303 is an apocalyptic number.

145643661303 is a deficient number, since it is larger than the sum of its proper divisors (77015689737).

145643661303 is a wasteful number, since it uses less digits than its factorization.

145643661303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15047.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 145643661303 in words is "one hundred forty-five billion, six hundred forty-three million, six hundred sixty-one thousand, three hundred three".