624161305643642 has 16 divisors (see below), whose sum is σ = 1008418779077640. Its totient is φ = 288029246352192.

The previous prime is 624161305643639. The next prime is 624161305643669. The reversal of 624161305643642 is 246346503161426.

It can be written as a sum of positive squares in 4 ways, for example, as 516803338089481 + 107357967554161 = 22733309^2 + 10361369^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1883264717 + ... + 1883596112.

Almost surely, 2^{624161305643642} is an apocalyptic number.

624161305643642 is a deficient number, since it is larger than the sum of its proper divisors (384257473433998).

624161305643642 is a wasteful number, since it uses less digits than its factorization.

624161305643642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766867217.

The product of its (nonzero) digits is 14929920, while the sum is 53.

The spelling of 624161305643642 in words is "six hundred twenty-four trillion, one hundred sixty-one billion, three hundred five million, six hundred forty-three thousand, six hundred forty-two".