1669741953 has 8 divisors (see below), whose sum is σ = 2428715616. Its totient is φ = 1011964800.

The previous prime is 1669741951. The next prime is 1669741979. The reversal of 1669741953 is 3591479661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1669741953 - 2¹ = 1669741951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1669741896 and 1669741905.

It is not an unprimeable number, because it can be changed into a prime (1669741951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25299088 + ... + 25299153.

It is an arithmetic number, because the mean of its divisors is an integer number (303589452).

Almost surely, 2^1669741953 is an apocalyptic number.

It is an amenable number.

1669741953 is a deficient number, since it is larger than the sum of its proper divisors (758973663).

1669741953 is a wasteful number, since it uses less digits than its factorization.

1669741953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50598255.

The product of its digits is 1224720, while the sum is 51.

The square root of 1669741953 is about 40862.4760997177. The cubic root of 1669741953 is about 1186.3598844616.

The spelling of 1669741953 in words is "one billion, six hundred sixty-nine million, seven hundred forty-one thousand, nine hundred fifty-three".