1672917656 has 8 divisors (see below), whose sum is σ = 3136720620. Its totient is φ = 836458824.

The previous prime is 1672917611. The next prime is 1672917803. The reversal of 1672917656 is 6567192761.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104557346 + ... + 104557361.

Almost surely, 2^1672917656 is an apocalyptic number.

It is an amenable number.

1672917656 is a deficient number, since it is larger than the sum of its proper divisors (1463802964).

1672917656 is a wasteful number, since it uses less digits than its factorization.

1672917656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209114713 (or 209114709 counting only the distinct ones).

The product of its digits is 952560, while the sum is 50.

The square root of 1672917656 is about 40901.3160668456. The cubic root of 1672917656 is about 1187.1115256870. Note that the first 3 decimals are identical.

The spelling of 1672917656 in words is "one billion, six hundred seventy-two million, nine hundred seventeen thousand, six hundred fifty-six".