620494451166 has 32 divisors (see below), whose sum is σ = 1314350318880. Its totient is φ = 194611286016.

The previous prime is 620494451113. The next prime is 620494451173. The reversal of 620494451166 is 661154494026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465331 + ... + 1207278.

It is an arithmetic number, because the mean of its divisors is an integer number (41073447465).

Almost surely, 2^620494451166 is an apocalyptic number.

620494451166 is an abundant number, since it is smaller than the sum of its proper divisors (693855867714).

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

620494451166 is a wasteful number, since it uses less digits than its factorization.

620494451166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676268.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 620494451166 in words is "six hundred twenty billion, four hundred ninety-four million, four hundred fifty-one thousand, one hundred sixty-six".