54645645545 has 16 divisors (see below), whose sum is σ = 67858560000. Its totient is φ = 42194996928.

The previous prime is 54645645541. The next prime is 54645645557. The reversal of 54645645545 is 54554654645.

It is a cyclic number.

It is not a de Polignac number, because 54645645545 - 2² = 54645645541 is a prime.

It is a super-2 number, since 2×54645645545² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54645645541) 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, 385256 + ... + 507654.

It is an arithmetic number, because the mean of its divisors is an integer number (4241160000).

Almost surely, 2^54645645545 is an apocalyptic number.

It is an amenable number.

54645645545 is a deficient number, since it is larger than the sum of its proper divisors (13212914455).

54645645545 is a wasteful number, since it uses less digits than its factorization.

54645645545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125512.

The product of its digits is 28800000, while the sum is 53.

The spelling of 54645645545 in words is "fifty-four billion, six hundred forty-five million, six hundred forty-five thousand, five hundred forty-five".