612228053403561 has 16 divisors (see below), whose sum is σ = 932919303803904. Its totient is φ = 349844464963344.

The previous prime is 612228053403497. The next prime is 612228053403667. The reversal of 612228053403561 is 165304350822216.

It is not a de Polignac number, because 612228053403561 - 2⁶ = 612228053403497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612228053403561.

It is not an unprimeable number, because it can be changed into a prime (612228053423561) 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, 77229610 + ... + 84787196.

It is an arithmetic number, because the mean of its divisors is an integer number (58307456487744).

Almost surely, 2^{612228053403561} is an apocalyptic number.

It is an amenable number.

612228053403561 is a deficient number, since it is larger than the sum of its proper divisors (320691250400343).

612228053403561 is a wasteful number, since it uses less digits than its factorization.

612228053403561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11415140.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 612228053403561 in words is "six hundred twelve trillion, two hundred twenty-eight billion, fifty-three million, four hundred three thousand, five hundred sixty-one".