610405561601 has 16 divisors (see below), whose sum is σ = 675773145216. Its totient is φ = 546695520000.

The previous prime is 610405561561. The next prime is 610405561663. The reversal of 610405561601 is 106165504016.

It is a cyclic number.

It is not a de Polignac number, because 610405561601 - 2¹⁸ = 610405299457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (610405561691) 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, 775811 + ... + 1350071.

It is an arithmetic number, because the mean of its divisors is an integer number (42235821576).

Almost surely, 2^610405561601 is an apocalyptic number.

It is an amenable number.

610405561601 is a deficient number, since it is larger than the sum of its proper divisors (65367583615).

610405561601 is a wasteful number, since it uses less digits than its factorization.

610405561601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575704.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 610405561601 in words is "six hundred ten billion, four hundred five million, five hundred sixty-one thousand, six hundred one".