626201206601 has 4 divisors (see below), whose sum is σ = 641474406804. Its totient is φ = 610928006400.

The previous prime is 626201206567. The next prime is 626201206627. The reversal of 626201206601 is 106602102626.

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 345326646025 + 280874560576 = 587645^2 + 529976^2 .

It is a cyclic number.

It is not a de Polignac number, because 626201206601 - 2¹⁰ = 626201205577 is a prime.

It is a super-2 number, since 2×626201206601² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (626201206651) 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, 7636600040 + ... + 7636600121.

It is an arithmetic number, because the mean of its divisors is an integer number (160368601701).

Almost surely, 2^626201206601 is an apocalyptic number.

It is an amenable number.

626201206601 is a deficient number, since it is larger than the sum of its proper divisors (15273200203).

626201206601 is a wasteful number, since it uses less digits than its factorization.

626201206601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15273200202.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 626201206601 in words is "six hundred twenty-six billion, two hundred one million, two hundred six thousand, six hundred one".