620161554244705 has 32 divisors (see below), whose sum is σ = 812346891522048. Its totient is φ = 450749374046400.

The previous prime is 620161554244699. The next prime is 620161554244717. The reversal of 620161554244705 is 507442455161026.

It is not a de Polignac number, because 620161554244705 - 2¹³ = 620161554236513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1577072122 + ... + 1577465308.

It is an arithmetic number, because the mean of its divisors is an integer number (25385840360064).

Almost surely, 2^{620161554244705} is an apocalyptic number.

It is an amenable number.

620161554244705 is a deficient number, since it is larger than the sum of its proper divisors (192185337277343).

620161554244705 is a wasteful number, since it uses less digits than its factorization.

620161554244705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410757.

The product of its (nonzero) digits is 8064000, while the sum is 52.

The spelling of 620161554244705 in words is "six hundred twenty trillion, one hundred sixty-one billion, five hundred fifty-four million, two hundred forty-four thousand, seven hundred five".