801156135572 has 48 divisors (see below), whose sum is σ = 1520174218752. Its totient is φ = 367242163200.

The previous prime is 801156135523. The next prime is 801156135607. The reversal of 801156135572 is 275531651108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68958308 + ... + 68969924.

It is an arithmetic number, because the mean of its divisors is an integer number (31670296224).

Almost surely, 2^801156135572 is an apocalyptic number.

It is an amenable number.

801156135572 is a deficient number, since it is larger than the sum of its proper divisors (719018083180).

801156135572 is a wasteful number, since it uses less digits than its factorization.

801156135572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20568 (or 20566 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 44.

The spelling of 801156135572 in words is "eight hundred one billion, one hundred fifty-six million, one hundred thirty-five thousand, five hundred seventy-two".