620364101566 has 48 divisors (see below), whose sum is σ = 1067569864704. Its totient is φ = 269656002000.

The previous prime is 620364101561. The next prime is 620364101569. The reversal of 620364101566 is 665101463026.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620364101561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26877811 + ... + 26900881.

It is an arithmetic number, because the mean of its divisors is an integer number (22241038848).

Almost surely, 2^620364101566 is an apocalyptic number.

620364101566 is a deficient number, since it is larger than the sum of its proper divisors (447205763138).

620364101566 is a wasteful number, since it uses less digits than its factorization.

620364101566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27949 (or 27938 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 620364101566 in words is "six hundred twenty billion, three hundred sixty-four million, one hundred one thousand, five hundred sixty-six".