145246331566646 has 16 divisors (see below), whose sum is σ = 227456154622944. Its totient is φ = 69430781982144.

The previous prime is 145246331566601. The next prime is 145246331566717. The reversal of 145246331566646 is 646665133642541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792063101 + ... + 792246456.

It is an arithmetic number, because the mean of its divisors is an integer number (14216009663934).

Almost surely, 2^{145246331566646} is an apocalyptic number.

145246331566646 is a deficient number, since it is larger than the sum of its proper divisors (82209823056298).

145246331566646 is a wasteful number, since it uses less digits than its factorization.

145246331566646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584311575.

The product of its digits is 223948800, while the sum is 62.

The spelling of 145246331566646 in words is "one hundred forty-five trillion, two hundred forty-six billion, three hundred thirty-one million, five hundred sixty-six thousand, six hundred forty-six".