1669960854 has 32 divisors (see below), whose sum is σ = 3789987840. Its totient is φ = 544809096.

The previous prime is 1669960841. The next prime is 1669960867. The reversal of 1669960854 is 4580699661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1669960841) and next prime (1669960867).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1669960854.

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, 326454 + ... + 331529.

It is an arithmetic number, because the mean of its divisors is an integer number (118437120).

Almost surely, 2^1669960854 is an apocalyptic number.

1669960854 is an abundant number, since it is smaller than the sum of its proper divisors (2120026986).

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

1669960854 is a wasteful number, since it uses less digits than its factorization.

1669960854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658041 (or 658035 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 1669960854 is about 40865.1545206916. The cubic root of 1669960854 is about 1186.4117256093.

The spelling of 1669960854 in words is "one billion, six hundred sixty-nine million, nine hundred sixty thousand, eight hundred fifty-four".