801278556150 has 48 divisors (see below), whose sum is σ = 1988825863248. Its totient is φ = 213496320000.

The previous prime is 801278556137. The next prime is 801278556173. The reversal of 801278556150 is 51655872108.

It is a self number, because there is not a number n which added to its sum of digits gives 801278556150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2043771 + ... + 2404070.

It is an arithmetic number, because the mean of its divisors is an integer number (41433872151).

Almost surely, 2^801278556150 is an apocalyptic number.

801278556150 is an abundant number, since it is smaller than the sum of its proper divisors (1187547307098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

801278556150 is a wasteful number, since it uses less digits than its factorization.

801278556150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449057 (or 4449052 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 48.

The spelling of 801278556150 in words is "eight hundred one billion, two hundred seventy-eight million, five hundred fifty-six thousand, one hundred fifty".