620626522601 has 4 divisors (see below), whose sum is σ = 623041412052. Its totient is φ = 618211633152.

The previous prime is 620626522591. The next prime is 620626522613. The reversal of 620626522601 is 106225626026.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 552084664576 + 68541858025 = 743024^2 + 261805^2 .

It is not a de Polignac number, because 620626522601 - 2¹⁰ = 620626521577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620626512601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1207444340 + ... + 1207444853.

It is an arithmetic number, because the mean of its divisors is an integer number (155760353013).

Almost surely, 2^620626522601 is an apocalyptic number.

It is an amenable number.

620626522601 is a deficient number, since it is larger than the sum of its proper divisors (2414889451).

620626522601 is a wasteful number, since it uses less digits than its factorization.

620626522601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414889450.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 620626522601 in words is "six hundred twenty billion, six hundred twenty-six million, five hundred twenty-two thousand, six hundred one".