854866545501 has 32 divisors (see below), whose sum is σ = 1208702638080. Its totient is φ = 535920840000.

The previous prime is 854866545499. The next prime is 854866545553. The reversal of 854866545501 is 105545668458.

It is not a de Polignac number, because 854866545501 - 2¹ = 854866545499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854866545581) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 11159536 + ... + 11235878.

It is an arithmetic number, because the mean of its divisors is an integer number (37771957440).

Almost surely, 2^854866545501 is an apocalyptic number.

It is an amenable number.

854866545501 is a deficient number, since it is larger than the sum of its proper divisors (353836092579).

854866545501 is a wasteful number, since it uses less digits than its factorization.

854866545501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77817.

The product of its (nonzero) digits is 23040000, while the sum is 57.

The spelling of 854866545501 in words is "eight hundred fifty-four billion, eight hundred sixty-six million, five hundred forty-five thousand, five hundred one".