1669851006 has 16 divisors (see below), whose sum is σ = 3370342800. Its totient is φ = 551510208.

The previous prime is 1669850971. The next prime is 1669851031. The reversal of 1669851006 is 6001589661.

It is a happy number.

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, 1275991 + ... + 1277298.

It is an arithmetic number, because the mean of its divisors is an integer number (210646425).

Almost surely, 2^1669851006 is an apocalyptic number.

1669851006 is an abundant number, since it is smaller than the sum of its proper divisors (1700491794).

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

1669851006 is a wasteful number, since it uses less digits than its factorization.

1669851006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553403.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1669851006 is about 40863.8104684328. The cubic root of 1669851006 is about 1186.3857114640.

The spelling of 1669851006 in words is "one billion, six hundred sixty-nine million, eight hundred fifty-one thousand, six".