801406540501 has 32 divisors (see below), whose sum is σ = 940915129088. Its totient is φ = 668285614080.

The previous prime is 801406540499. The next prime is 801406540511. The reversal of 801406540501 is 105045604108.

It is not a de Polignac number, because 801406540501 - 2¹ = 801406540499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801406540511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85278535 + ... + 85287931.

It is an arithmetic number, because the mean of its divisors is an integer number (29403597784).

Almost surely, 2^801406540501 is an apocalyptic number.

It is an amenable number.

801406540501 is a deficient number, since it is larger than the sum of its proper divisors (139508588587).

801406540501 is a wasteful number, since it uses less digits than its factorization.

801406540501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10541.

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 801406540501 in words is "eight hundred one billion, four hundred six million, five hundred forty thousand, five hundred one".