620412506641 has 2 divisors, whose sum is σ = 620412506642. Its totient is φ = 620412506640.

The previous prime is 620412506633. The next prime is 620412506663. The reversal of 620412506641 is 146605214026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 532784666241 + 87627840400 = 729921^2 + 296020^2 .

It is a cyclic number.

It is not a de Polignac number, because 620412506641 - 2³ = 620412506633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620412506641.

It is not a weakly prime, because it can be changed into another prime (620412506341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310206253320 + 310206253321.

It is an arithmetic number, because the mean of its divisors is an integer number (310206253321).

Almost surely, 2^620412506641 is an apocalyptic number.

It is an amenable number.

620412506641 is a deficient number, since it is larger than the sum of its proper divisors (1).

620412506641 is an equidigital number, since it uses as much as digits as its factorization.

620412506641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 620412506641 in words is "six hundred twenty billion, four hundred twelve million, five hundred six thousand, six hundred forty-one".