1669465497 has 32 divisors (see below), whose sum is σ = 2652300288. Its totient is φ = 914187456.

The previous prime is 1669465489. The next prime is 1669465519. The reversal of 1669465497 is 7945649661.

It is not a de Polignac number, because 1669465497 - 2³ = 1669465489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1669465597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30418 + ... + 65300.

It is an arithmetic number, because the mean of its divisors is an integer number (82884384).

Almost surely, 2^1669465497 is an apocalyptic number.

It is an amenable number.

1669465497 is a deficient number, since it is larger than the sum of its proper divisors (982834791).

1669465497 is a wasteful number, since it uses less digits than its factorization.

1669465497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34989.

The product of its digits is 9797760, while the sum is 57.

The square root of 1669465497 is about 40859.0931984546. The cubic root of 1669465497 is about 1186.2944063978.

The spelling of 1669465497 in words is "one billion, six hundred sixty-nine million, four hundred sixty-five thousand, four hundred ninety-seven".