801128655 has 48 divisors (see below), whose sum is σ = 1498124160. Its totient is φ = 394527744.

The previous prime is 801128633. The next prime is 801128687. The reversal of 801128655 is 556821108.

It is not a de Polignac number, because 801128655 - 2⁵ = 801128623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30666 + ... + 50424.

It is an arithmetic number, because the mean of its divisors is an integer number (31210920).

Almost surely, 2^801128655 is an apocalyptic number.

801128655 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

801128655 is a deficient number, since it is larger than the sum of its proper divisors (696995505).

801128655 is a wasteful number, since it uses less digits than its factorization.

801128655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19840 (or 19837 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 801128655 is about 28304.2162053642. The cubic root of 801128655 is about 928.7541242835.

The spelling of 801128655 in words is "eight hundred one million, one hundred twenty-eight thousand, six hundred fifty-five".