1980966535 has 8 divisors (see below), whose sum is σ = 2377419840. Its totient is φ = 1584599904.

The previous prime is 1980966523. The next prime is 1980966571. The reversal of 1980966535 is 5356690891.

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

It is a cyclic number.

It is not a de Polignac number, because 1980966535 - 2⁵ = 1980966503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50434 + ... + 80656.

It is an arithmetic number, because the mean of its divisors is an integer number (297177480).

Almost surely, 2^1980966535 is an apocalyptic number.

1980966535 is a deficient number, since it is larger than the sum of its proper divisors (396453305).

1980966535 is a wasteful number, since it uses less digits than its factorization.

1980966535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43337.

The product of its (nonzero) digits is 1749600, while the sum is 52.

The square root of 1980966535 is about 44508.0502268972. The cubic root of 1980966535 is about 1255.9115264789.

The spelling of 1980966535 in words is "one billion, nine hundred eighty million, nine hundred sixty-six thousand, five hundred thirty-five".