620595666687 has 16 divisors (see below), whose sum is σ = 853778483712. Its totient is φ = 400753148160.

The previous prime is 620595666619. The next prime is 620595666793. The reversal of 620595666687 is 786666595026.

It is not a de Polignac number, because 620595666687 - 2¹² = 620595662591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620595666287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22673889 + ... + 22701242.

It is an arithmetic number, because the mean of its divisors is an integer number (53361155232).

Almost surely, 2^620595666687 is an apocalyptic number.

620595666687 is a deficient number, since it is larger than the sum of its proper divisors (233182817025).

620595666687 is a wasteful number, since it uses less digits than its factorization.

620595666687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45375278.

The product of its (nonzero) digits is 195955200, while the sum is 66.

The spelling of 620595666687 in words is "six hundred twenty billion, five hundred ninety-five million, six hundred sixty-six thousand, six hundred eighty-seven".