54216155536040 has 32 divisors (see below), whose sum is σ = 121988587869000. Its totient is φ = 21686064363264.

The previous prime is 54216155535979. The next prime is 54216155536079. The reversal of 54216155536040 is 4063555161245.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42374449508356 + 11841706027684 = 6509566^2 + 3441178^2 .

It is a super-2 number, since 2×54216155536040² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10220375 + ... + 14590694.

Almost surely, 2^{54216155536040} is an apocalyptic number.

It is an amenable number.

54216155536040 is an abundant number, since it is smaller than the sum of its proper divisors (67772432332960).

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

54216155536040 is a wasteful number, since it uses less digits than its factorization.

54216155536040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24865709 (or 24865705 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 54216155536040 in words is "fifty-four trillion, two hundred sixteen billion, one hundred fifty-five million, five hundred thirty-six thousand, forty".