1980659355 has 8 divisors (see below), whose sum is σ = 3169054992. Its totient is φ = 1056351648.

The previous prime is 1980659339. The next prime is 1980659407. The reversal of 1980659355 is 5539560891.

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

It is not a de Polignac number, because 1980659355 - 2⁴ = 1980659339 is a prime.

It is a super-2 number, since 2×1980659355² = 7846022961098032050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1980659298 and 1980659307.

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, 66021964 + ... + 66021993.

It is an arithmetic number, because the mean of its divisors is an integer number (396131874).

Almost surely, 2^1980659355 is an apocalyptic number.

1980659355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1980659355 is a deficient number, since it is larger than the sum of its proper divisors (1188395637).

1980659355 is a wasteful number, since it uses less digits than its factorization.

1980659355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132043965.

The product of its (nonzero) digits is 1458000, while the sum is 51.

The square root of 1980659355 is about 44504.5992567060. The cubic root of 1980659355 is about 1255.8466068486.

The spelling of 1980659355 in words is "one billion, nine hundred eighty million, six hundred fifty-nine thousand, three hundred fifty-five".