66154541336 has 32 divisors (see below), whose sum is σ = 141439011840. Its totient is φ = 28736813568.

The previous prime is 66154541333. The next prime is 66154541393. The reversal of 66154541336 is 63314545166.

66154541336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66154541333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18707096 + ... + 18710631.

It is an arithmetic number, because the mean of its divisors is an integer number (4419969120).

Almost surely, 2^66154541336 is an apocalyptic number.

It is an amenable number.

66154541336 is an abundant number, since it is smaller than the sum of its proper divisors (75284470504).

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

66154541336 is a wasteful number, since it uses less digits than its factorization.

66154541336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37417763 (or 37417759 counting only the distinct ones).

The product of its digits is 777600, while the sum is 44.

The spelling of 66154541336 in words is "sixty-six billion, one hundred fifty-four million, five hundred forty-one thousand, three hundred thirty-six".