54166607680 has 112 divisors (see below), whose sum is σ = 137443592016. Its totient is φ = 20261928960.

The previous prime is 54166607669. The next prime is 54166607681. The reversal of 54166607680 is 8670666145.

It can be written as a sum of positive squares in 8 ways, for example, as 2623078656 + 51543529024 = 51216^2 + 227032^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54166607681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822370 + ... + 885790.

Almost surely, 2^54166607680 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 54166607680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68721796008).

54166607680 is an abundant number, since it is smaller than the sum of its proper divisors (83276984336).

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

54166607680 is a wasteful number, since it uses less digits than its factorization.

54166607680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63612 (or 63602 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 54166607680 in words is "fifty-four billion, one hundred sixty-six million, six hundred seven thousand, six hundred eighty".