669010620 has 24 divisors (see below), whose sum is σ = 1873229904. Its totient is φ = 178402816.

The previous prime is 669010603. The next prime is 669010651. The reversal of 669010620 is 26010966.

669010620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5575029 + ... + 5575148.

It is an arithmetic number, because the mean of its divisors is an integer number (78051246).

Almost surely, 2^669010620 is an apocalyptic number.

669010620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

669010620 is an abundant number, since it is smaller than the sum of its proper divisors (1204219284).

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

669010620 is a wasteful number, since it uses less digits than its factorization.

669010620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11150189 (or 11150187 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 669010620 is about 25865.2396084011. The cubic root of 669010620 is about 874.6030831073.

The spelling of 669010620 in words is "six hundred sixty-nine million, ten thousand, six hundred twenty".