1670601951 has 12 divisors (see below), whose sum is σ = 2555038512. Its totient is φ = 1048220736.

The previous prime is 1670601931. The next prime is 1670601953. The reversal of 1670601951 is 1591060761.

It is a happy number.

It is not a de Polignac number, because 1670601951 - 2²² = 1666407647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670601953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5459331 + ... + 5459636.

It is an arithmetic number, because the mean of its divisors is an integer number (212919876).

Almost surely, 2^1670601951 is an apocalyptic number.

1670601951 is a deficient number, since it is larger than the sum of its proper divisors (884436561).

1670601951 is a wasteful number, since it uses less digits than its factorization.

1670601951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10918990 (or 10918987 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 1670601951 is about 40872.9978225234. The cubic root of 1670601951 is about 1186.5635271091.

The spelling of 1670601951 in words is "one billion, six hundred seventy million, six hundred one thousand, nine hundred fifty-one".