54515320142064 has 80 divisors (see below), whose sum is σ = 143028052285440. Its totient is φ = 17890275870720.

The previous prime is 54515320142047. The next prime is 54515320142069. The reversal of 54515320142064 is 46024102351545.

It is a super-2 number, since 2×54515320142064² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54515320142069) 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, 29761534 + ... + 31540125.

It is an arithmetic number, because the mean of its divisors is an integer number (1787850653568).

Almost surely, 2^{54515320142064} is an apocalyptic number.

It is an amenable number.

54515320142064 is an abundant number, since it is smaller than the sum of its proper divisors (88512732143376).

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

54515320142064 is a wasteful number, since it uses less digits than its factorization.

54515320142064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61301958 (or 61301952 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 54515320142064 in words is "fifty-four trillion, five hundred fifteen billion, three hundred twenty million, one hundred forty-two thousand, sixty-four".