66154541300 has 108 divisors (see below), whose sum is σ = 146401629696. Its totient is φ = 25945617600.

The previous prime is 66154541293. The next prime is 66154541333. The reversal of 66154541300 is 314545166.

It is a super-2 number, since 2×66154541300² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 134734055 + ... + 134734545.

Almost surely, 2^66154541300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66154541300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73200814848).

66154541300 is an abundant number, since it is smaller than the sum of its proper divisors (80247088396).

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

66154541300 is a wasteful number, since it uses less digits than its factorization.

66154541300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 66154541300 in words is "sixty-six billion, one hundred fifty-four million, five hundred forty-one thousand, three hundred".