801511248144 has 40 divisors (see below), whose sum is σ = 2070808958752. Its totient is φ = 267139676160.

The previous prime is 801511248067. The next prime is 801511248157. The reversal of 801511248144 is 441842115108.

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, 537169 + ... + 1375344.

Almost surely, 2^801511248144 is an apocalyptic number.

It is an amenable number.

801511248144 is an abundant number, since it is smaller than the sum of its proper divisors (1269297710608).

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

801511248144 is a wasteful number, since it uses less digits than its factorization.

801511248144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921255 (or 1921249 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The spelling of 801511248144 in words is "eight hundred one billion, five hundred eleven million, two hundred forty-eight thousand, one hundred forty-four".