855549231801 has 64 divisors (see below), whose sum is σ = 1303024859136. Its totient is φ = 494261222400.

The previous prime is 855549231793. The next prime is 855549231853. The reversal of 855549231801 is 108132945558.

855549231801 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 855549231801 - 2³ = 855549231793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (855549231301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 459724611 + ... + 459726471.

It is an arithmetic number, because the mean of its divisors is an integer number (20359763424).

Almost surely, 2^855549231801 is an apocalyptic number.

It is an amenable number.

855549231801 is a deficient number, since it is larger than the sum of its proper divisors (447475627335).

855549231801 is a wasteful number, since it uses less digits than its factorization.

855549231801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662.

The product of its (nonzero) digits is 1728000, while the sum is 51.

The spelling of 855549231801 in words is "eight hundred fifty-five billion, five hundred forty-nine million, two hundred thirty-one thousand, eight hundred one".