620262440890668 has 144 divisors (see below), whose sum is σ = 1574661524916480. Its totient is φ = 205862939856000.

The previous prime is 620262440890643. The next prime is 620262440890709. The reversal of 620262440890668 is 866098044262026.

It is a happy number.

620262440890668 is a `hidden beast` number, since 6 + 20 + 2 + 62 + 4 + 408 + 90 + 6 + 68 = 666.

It is a super-2 number, since 2×620262440890668² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17359206363 + ... + 17359242093.

Almost surely, 2^{620262440890668} is an apocalyptic number.

It is an amenable number.

620262440890668 is an abundant number, since it is smaller than the sum of its proper divisors (954399084025812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620262440890668 is a wasteful number, since it uses less digits than its factorization.

620262440890668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38388 (or 38383 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 63.

The spelling of 620262440890668 in words is "six hundred twenty trillion, two hundred sixty-two billion, four hundred forty million, eight hundred ninety thousand, six hundred sixty-eight".