622666545 has 16 divisors (see below), whose sum is σ = 1008879360. Its totient is φ = 327884544.

The previous prime is 622666543. The next prime is 622666547. The reversal of 622666545 is 545666226.

It is an interprime number because it is at equal distance from previous prime (622666543) and next prime (622666547).

It is not a de Polignac number, because 622666545 - 2¹ = 622666543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 622666497 and 622666506.

It is not an unprimeable number, because it can be changed into a prime (622666543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261544 + ... + 263913.

It is an arithmetic number, because the mean of its divisors is an integer number (63054960).

Almost surely, 2^622666545 is an apocalyptic number.

It is an amenable number.

622666545 is a deficient number, since it is larger than the sum of its proper divisors (386212815).

622666545 is a wasteful number, since it uses less digits than its factorization.

622666545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525544.

The product of its digits is 518400, while the sum is 42.

The square root of 622666545 is about 24953.2872583954. The cubic root of 622666545 is about 853.9226058638.

It can be divided in two parts, 6226 and 66545, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 622666545 in words is "six hundred twenty-two million, six hundred sixty-six thousand, five hundred forty-five".