620066521423 has 32 divisors (see below), whose sum is σ = 667445264640. Its totient is φ = 574958442240.

The previous prime is 620066521367. The next prime is 620066521427. The reversal of 620066521423 is 324125660026.

It is a cyclic number.

It is not a de Polignac number, because 620066521423 - 2⁹ = 620066520911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620066521427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21824515 + ... + 21852907.

It is an arithmetic number, because the mean of its divisors is an integer number (20857664520).

Almost surely, 2^620066521423 is an apocalyptic number.

620066521423 is a deficient number, since it is larger than the sum of its proper divisors (47378743217).

620066521423 is a wasteful number, since it uses less digits than its factorization.

620066521423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28759.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 620066521423 in words is "six hundred twenty billion, sixty-six million, five hundred twenty-one thousand, four hundred twenty-three".