620561400105 has 16 divisors (see below), whose sum is σ = 1017115271424. Its totient is φ = 322893736320.

The previous prime is 620561400103. The next prime is 620561400157. The reversal of 620561400105 is 501004165026.

It is not a de Polignac number, because 620561400105 - 2¹ = 620561400103 is a prime.

It is a super-2 number, since 2×620561400105² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (620561400103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504520849 + ... + 504522078.

It is an arithmetic number, because the mean of its divisors is an integer number (63569704464).

Almost surely, 2^620561400105 is an apocalyptic number.

It is an amenable number.

620561400105 is a deficient number, since it is larger than the sum of its proper divisors (396553871319).

620561400105 is a wasteful number, since it uses less digits than its factorization.

620561400105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009042976.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 620561400105 in words is "six hundred twenty billion, five hundred sixty-one million, four hundred thousand, one hundred five".