612556544545 has 16 divisors (see below), whose sum is σ = 823564968768. Its totient is φ = 433455243840.

The previous prime is 612556544491. The next prime is 612556544581. The reversal of 612556544545 is 545445655216.

612556544545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 612556544545 - 2⁷ = 612556544417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612556544492 and 612556544501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150503259 + ... + 150507328.

It is an arithmetic number, because the mean of its divisors is an integer number (51472810548).

Almost surely, 2^612556544545 is an apocalyptic number.

It is an amenable number.

612556544545 is a deficient number, since it is larger than the sum of its proper divisors (211008424223).

612556544545 is a wasteful number, since it uses less digits than its factorization.

612556544545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301010640.

The product of its digits is 14400000, while the sum is 52.

The spelling of 612556544545 in words is "six hundred twelve billion, five hundred fifty-six million, five hundred forty-four thousand, five hundred forty-five".