1669620701 has 8 divisors (see below), whose sum is σ = 1908398784. Its totient is φ = 1430907840.

The previous prime is 1669620679. The next prime is 1669620703. The reversal of 1669620701 is 1070269661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1669620701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669620703) 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, 66821 + ... + 88341.

It is an arithmetic number, because the mean of its divisors is an integer number (238549848).

Almost surely, 2^1669620701 is an apocalyptic number.

It is an amenable number.

1669620701 is a deficient number, since it is larger than the sum of its proper divisors (238778083).

1669620701 is a wasteful number, since it uses less digits than its factorization.

1669620701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32611.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 1669620701 is about 40860.9924133029. The cubic root of 1669620701 is about 1186.3311670520.

The spelling of 1669620701 in words is "one billion, six hundred sixty-nine million, six hundred twenty thousand, seven hundred one".