1669954512 has 20 divisors (see below), whose sum is σ = 4314049280. Its totient is φ = 556651488.

The previous prime is 1669954499. The next prime is 1669954519. The reversal of 1669954512 is 2154599661.

1669954512 is digitally balanced in base 4, 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 (48), and also a Moran number because the ratio is a prime number: 34790719 = 1669954512 / (1 + 6 + 6 + 9 + 9 + 5 + 4 + 5 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669954519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17395312 + ... + 17395407.

It is an arithmetic number, because the mean of its divisors is an integer number (215702464).

Almost surely, 2^1669954512 is an apocalyptic number.

1669954512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1669954512 is an abundant number, since it is smaller than the sum of its proper divisors (2644094768).

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

1669954512 is a wasteful number, since it uses less digits than its factorization.

1669954512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34790730 (or 34790724 counting only the distinct ones).

The product of its digits is 583200, while the sum is 48.

The square root of 1669954512 is about 40865.0769239457. The cubic root of 1669954512 is about 1186.4102237312.

The spelling of 1669954512 in words is "one billion, six hundred sixty-nine million, nine hundred fifty-four thousand, five hundred twelve".